The surface area of a cube is defined as the total area covered by the six square faces of the cube. It is measured in square units. What is the Surface Area of a Cube? The surface area of a cube is defined as the total area covered by the six square faces of the cube. It is measured in square units.2 Dec 2010 ... assuming you mean the cube has 6cm sides....each face of the cube has an area of 6cm x 6cm = 36cm2A cube has 6 faces so the total surface ...Find the area of a cube with sides of length 8. S = 6a^2 S = 6a2. S = 6*8^2 S = 6 ∗ 82. S = 384 S = 384. So the surface area of the cube is 384 square units. The area of a cube is the total surface area of all its faces, and calculated by A = 6s^2 formula.If you're given a 3-d cube centered at the origin, i.e. the center of the cube is at (0, 0, 0). If you rotate the cube in x, y, and z direction, then how can you find the area of its orthogonal projection. For example, if you don't rotate the cube at all, then the area is just 1. However, say you rotate the cube 45 ∘ along the line x = y = 0 ...Suppose, out of the six faces of a cube, we only find the area of the four faces, leaving the bottom and top faces. In such a case, the area of these four faces is called lateral surface area of the cube. So, lateral surface area of a cube of side s is equal to \(4s^2\). Example: Hameed has built a cubical water tank with lid for his house ...Oct 14, 2022 · The area of a cube is found using the following steps −. Find the area of one square face with the given edge. Four times the area of the square found is “lateral surface area” Six times the area of the square found is “total surface area” Mathematical formulae to find surface areas of any cube with a given edge ‘a’ are as follows − You can find the surface area of a cube by finding the area of the cube and then multiplying the area by the total number of edges. For example, if the length of a side of a cube is 6 feet, the area of the cube will be 36. Now by using the surface area formula: Surface Area = 6×a 2. Substituting the Value of the area of the cube,Cartesian coordinates. For a cube centered at the origin, with edges parallel to the axes and with an edge length of 2, the Cartesian coordinates of the vertices are (±1, ±1, ±1) while the interior consists of all points (x 0, x 1, x 2) with −1 < x i < 1 for all i.As a configuration. This configuration matrix represents the cube. The rows and columns correspond to vertices, …In words, the surface area of a cube is the area of the six squares that cover it. The area of one of them is a*a, or a 2. Since these are all the same, you can multiply one of them by six, so the surface area of a cube is 6 times one of the sides squared.To find the surface area of a cube, use the formula: surface area = 6s^2, where s is the length of one of the sides. If you don't know …The surface area of cube worksheets helps understand the fundamental properties of cubes and their surface areas. A cube is a 3-dimensional shape with six equal squares, and its surface area is the sum of the area of all these squares. Learning about the basics of finding surface area helps acquire many necessary life skills, like calculating ... Cube Surface Area Formula. The formula for surface area of a cube is given as: SA = 6a 2. Where SA is the surface area, and a is the edge length. A cube has 6 faces that are all squares. The surface area formula is 6 times the area of a square (area of a square = a 2).What is a Cube? A cube is a three-dimensional solid figure bounded by six square faces. It has 6 faces, 8 vertices and 12 edges. Example: Dice, Ice cube, Rubik's cube, etc. In this article, you will learn about the surface area of the cube, its formula and derivation along with some solved examples.This geometry video tutorial explains how to calculate the surface area of a cube.Area - Rectangle: https://www.yout... Find the side (in cm) of a cube whose surface area is 294 cm2. The total surface area of a cube is 96 cm2. The volume of the cube is: The total surface area of a cube is 216 cm2. Find its volume. If the total surface area of a cube is 486 cm2, find the volume of the cube.Since a cube has six faces the surface area of a cube is six times the area of one face. Surface area of a cube = 6s 2. Worksheet to calculate volume and surface area of cubes. Example: Find the surface area of a cube with a side of length 3 cm. Solution: Given that s = 3. Surface area of a cube = 6s 2 = 6(3) 2 = 54 cm 2. How to find the ...16 Dec 2019 ... Answer:Total surface area = 864cmsquareLateral surface area= 576cmsquare Step-by-step explanation:Surface area of cube = 6 × (l)square units ...16 May 2013 ... Share your videos with friends, family, and the world.Here is Elena’s work for finding the surface area of a rectangular prism that is 1 foot by 1 foot by 2 feet. Figure [Math Processing Error] 6.2. 6: Rectangular prism. …A cube has a lateral surface that excludes the area of the top and bottom faces of a cube and a total surface area that includes all 6 faces of a cube. The formulae for finding the areas of a cube are: The lateral surface area of a cube = 4 x 2 s q. u n i t s. Total Surface Area = 6 x 2 s q. u n i t s.A cube is made up of six equal squares, so its total surface area equals 6 times the area of the square, s². This means that when given the length of the side of the cube, follow the steps below to find the surface area of the cube: STEP 1: Find out if you’re given the cube’s side length or one surface’s area. STEP 2: If you have the ... The surface area of a cube = 6a 2 where a is the length of the side of each edge of the cube. Put another way, since all sides of a cube are equal, a is just the lenght of one side of a cube. We have 96 = 6a 2 → a 2 = 16, so that's the area of one face of the cube. Solving we get √16, so a = 4Please Enter the Length of any Side of a Cube: 5 Surface Area of Cube = 150.00 Volume of cube = 125.00 Lateral Surface Area of Cube = 100.00 Within this Python Program to find Volume and Surface Area of a Cube, Below statements will ask the user to enter the length value and it will assign the user input values to respected variable.A cube is made up of six equal squares, so its total surface area equals 6 times the area of the square, s². This means that when given the length of the side of the cube, follow the steps below to find the surface area of the cube: STEP 1: Find out if you’re given the cube’s side length or one surface’s area. STEP 2: If you have the ...The surface area of a rectangular prism calculator gives us the answer: A = 2 × l × w + 2 × l × h + 2 × w × h = 2 × 8 ft × 6 ft + 2 × 8 ft × 5 ft + 2 × 6 ft × 5 ft = 236 ft². But that is the surface area of the entire prism, and we don't want to tile it all around. After all, if we tile the top, it would be pretty difficult to get ...May 4, 2023 · Lateral surface area of a cube = 100 cm². Lateral surface area of a cube formula = 4a². Hence, 4a² = 100. 100 / 4 = a². a² = 25. a = 5cm² – which is the length of each side of a cube. Total surface area of a cube formula = 6a² = 6 x 25 = 150cm². The total surface area of the given cube is 150cm². The parts of a cube are: 6 Faces – Opposite faces are parallel. Every face meets other four faces. The angles between any two faces are 90°. 8 Edges – Opposite edges are parallel; 12 vertices – Each vertex is the meeting point of three faces and three edges.; A net of a cube can help us understand its shape from a 2-D view as shown.ご覧頂き有難うございます。ウォールグリーン(フェイクグリーン)作品につきましては全て光触媒加工しています。光触媒とは抗ウィルス効果、消臭効果、室内空気、汚染ガスの ...3. Correct answer: 4. Explanation: The surface area of a cube = 6a 2 where a is the length of the side of each edge of the cube. Put another way, since all sides of a cube are equal, a is just the lenght of one side of a cube. We have 96 = 6a 2 → a 2 = 16, so that's the area of one face of the cube. Solving we get √16, so a = 4. 17 Jan 2024 ... Faritra ambonin'ny goba. Ny cube dia endrika mivaingana tsy tapaka manana endrika efamira enina(6), vertex valo ary sisiny roa ambin'ny folo ...1. Find the volume of a cube given that the length of its side is: (a) 4 cm (b) 6 mm (c) 2.5 m (d) 2 3 m 2. A cube has length 10 mm. Find the volume of the cube. 3. The volume of a cube is 729 cm3. Find the length of the cube. 4. The area of one face of a cube is 36 cm2. Find (a) The length of the cube (b) The total surface area of the cubeTake a piece of paper and proceed to attack the formula for the volume of a cube by multiplying first l × l = 5cm × 5cm = 25cm². We have now calculated the area of the squares that make up each of the six sides of our cube. We are one dimension (i.e., one multiplication) away from finding the volume of a cube, so just pick up that pen again ...The formula to find the length of a cube's sides by lateral surface area: a = \sqrt {\dfrac {S_l} {4}} a = 4S l. The formula to find the length of a cube's sides by total surface area is: a = \sqrt {\dfrac {S} {6}} a = 6S. where a is the length of one side, S l and S are the lateral and total surface areas of the cube.I assume you mean the surface area, since a square pyramid is 3-dimensional. For a right square pyramid with base side length s and slant height L, the total surface area is the area of the square base with side length s, plus the total area of four triangles each with base s and altitude L. So the total surface area is s^2 + 4(1/2)(sL) = s^2 ... The surface area formula for a cube is 6 x side 2, as seen in the figure below: This calculation requires only one measurement, due to the symmetricity of the cube. side 2 is the surface of one of the sides, and since the cube has 6 equal sides, multiplying by 6 gives us the total cube surface area. E.g. to find the surface area of a cube with ... How to calculate the surface area of a cube. When it comes to the calculations we do with 2D shapes, we only ever work out what their area is. With an extra dimension comes extra calculations as 3D shapes have a surface area and volume we have to figure out. We’ll start off with how to calculate the surface area of a cube.The surface area of a rectangular prism calculator gives us the answer: A = 2 × l × w + 2 × l × h + 2 × w × h = 2 × 8 ft × 6 ft + 2 × 8 ft × 5 ft + 2 × 6 ft × 5 ft = 236 ft². But that is the surface area of the entire prism, and we don't want to tile it all around. After all, if we tile the top, it would be pretty difficult to get ...Definition of Surface Area. Surface area, in mathematical terms, is the total area of all the faces or surfaces of a three-dimensional object. If you were to take all the surfaces of an object and lay them flat, the combined area of these surfaces would be the object’s surface area. For a cube, since all the faces are squares of the same size ...Our surface area calculator can find the surface area of seven different solids. The formula depends on the type of solid. Surface area of a sphere: A = 4πr², where r stands for the radius of the sphere. Surface area of a cube: A = 6a², where a is the side length. Surface area of a cylinder: A = 2πr² + 2πrh, where r is the radius and h is the …Write a C++ Program to Find the Volume and Surface Area of a Cube with an example. This C++ program allows users to enter the length of any side of a cube. Next, we calculate the Surface Area, Lateral Surface Area, and Volume of a cube using mathematical formulas. They are. C++ Volume of a Cube = l * l * l; C++ Surface Area of a Cube = 6l²A cube is a regular hexahedron (all six faces are regular polygons) making it one of the five Platonic solids. Surface area of a cube. The total surface area, S, of a cube is the area of its six identical faces:. S = 6·a 2. where a is the length of its edge and a 2 is the area of one face of the square. Volume of a cube Learn how to calculate the surface area of a cube using the formula 6a2, where a is the side length of the cube. Find out the definition, examples …What is a Cube? A cube is a three-dimensional solid figure bounded by six square faces. It has 6 faces, 8 vertices and 12 edges. Example: Dice, Ice cube, Rubik's cube, etc. In this article, you will learn about the surface area of the cube, its formula and derivation along with some solved examples.Area of a Cube: The area of a cube is calculated by multiplying the length of one side by itself (squared). Formula: Area = side length^2. Surface Area of a Cube: The surface area of a cube is calculated by multiplying the area of one face by 6, as a cube has 6 equal faces. Formula: Surface Area = 6 * Area of one face = 6 * (side length^2 ...Hence, there will be 64 such cubes. The surface area of the smaller cubes = 6 (12) = 6 cm2. Therefore, the surface area of 64 such cubes = 64 * 6 = 384 cm2. The surface area of the big (original) cube = 6 (42) = 6*16 = 96 cm2. Example 6: A cube whose sides are 10.7 cm in length. Find the surface area of the cube.Jun 24, 2023 · The formula for determining the surface area of a cube is defined as: S A = 6 ⋅ a 2. S A: the surface area of the cube. a: the length of any side. The SI unit of surface area is: s q u a r e m e t e r ( m 2) Area Unit Converter. The surface area of a cube is the sum of the areas of all its faces. Since a cube has six faces that are all congruent squares, its surface area can be calculated as: Surface area = 6 x (side length)^2 The surface area of a cube is a useful measurement in many applications, such as in packaging and shipping, where the amount of material …Take a piece of paper and proceed to attack the formula for the volume of a cube by multiplying first l × l = 5cm × 5cm = 25cm². We have now calculated the area of the squares that make up each of the six sides of our cube. We are one dimension (i.e., one multiplication) away from finding the volume of a cube, so just pick up that pen again ...The Surface Area of a Cube Calculator can calculate the surface area of a cube if you can enter in the size of one side of a cube. Each side of a cube is exactly the same size so just measure the size of any one side and input it into the field below and press calculate to rind out the surface area of the cube.22.) Assertion (A) –8 persons can stay in a cubical room. Each person requires 27 m³ of air. The side of the cube is 6cm. Reasons (R) –The surface area of a cube can be represented as 6s^2, since a cube has six sides and the surface area of each side is represented by its length. a) Both A and R are true and R is the correct …Download Surface Area and Volume Cheatsheet Below. Surface Area of Cube. A cube is a 3d representation of a square and has all equal sides. The length, breadth, and height in a cube are the same and are termed as sides (s). If s is each edge of the cube then, the surface area of a cube: 2 [(s × s) + (s × s) + (s × s)] = 2 ( 3s 2) = 6s 2A cube has a lateral surface that excludes the area of the top and bottom faces of a cube and a total surface area that includes all 6 faces of a cube. The formulae for finding the areas of a cube are: The lateral surface area of a cube = 4 x 2 s q. u n i t s. Total Surface Area = 6 x 2 s q. u n i t s.To calculate the area of a cube, let us first revise the concept of a cube. A cube is a geometrical figure containing three dimensions: length, width, and height with all the dimensions having equal measurements.It has six square faces, four of which are lateral surfaces and the other two are the cube's top and bottom surfaces.Jan 30, 2024 · Surface area of a sphere: A = 4πr², where r stands for the radius of the sphere. Surface area of a cube: A = 6a², where a is the side length. Surface area of a cylinder: A = 2πr² + 2πrh, where r is the radius and h is the height of the cylinder. Surface area of a cone: A = πr² + πr√(r² + h²), where r is the radius and h is the ... Total surface area of cube = 6 × (l) 2. = 6 × (0.4) 2. = 6 × 0.16. = 0.96 sqm. Cost of painting 1 sqm is 50 rupees. ∴ Cost of painting 0.96 sqm will be = 0.96 × 50 = 48 rupees. It will cost 48 rupees to paint the outer surface of the box. If you would like to contribute notes or other learning material, please submit them using the button ...If the total surface area of a cube is 96 sq. cm, then the length of each side of the cube is. A 3×3 Rubik's cube has a total surface area of 54 cm2. The area occupied by every single red tile of the cube is ___________ . The side of a cube is 6 cm. The ratio of its surface area and volume is ___ . Rubik's cube has a total surface area of 54 cm2.Study how to find the surface area of cubes and cuboids. Read about how to calculate the surface area of cuboids and cubes, watch an animation, then try to figure out the surface area of the prism. You can also practice finding the surface area of objects with different side lengths - the interactive program will let you know how you're doing!This morning Cube, a startup that builds FP&A software for the mid-market, announced that it has raised a $10 million Series A. The company previously raised a $5 million seed roun...The Surface Area of a Cube Calculator can calculate the surface area of a cube if you can enter in the size of one side of a cube. Each side of a cube is exactly the same size so just measure the size of any one side and input it into the field below and press calculate to rind out the surface area of the cube.Everything you need to know about tungsten in five minutes or less, including why crypto bros love tungsten cubes so much. Want to escape the news cycle? Try our Weekly Obsession.This Miami architecture tour takes you to the strangest buildings in Miami, including a phallus-shaped hotel and a cube clad in ceramic. Though Miami is relatively new on the world...Aug 3, 2023 · Finding the SURFACE AREA of the cube when VOLUME is known. Calculate the surface area of a cube given its volume of 343 cm3. Solution: Here, we will use an alternative formula. S A = 6 V 2 / 3, here V = 343 cm 3. ∴ S A = 6 × ( 343) 2 / 3. = 294 cm 2. What is the surface area of a cube. Surface area of cubes and rectangular prisms. Follow the instructions below to make a paper cube. Cut off part of an A4 sheet so that you are left with a square. Cut the square into two equal halves. Fold each half square lengthwise down the …In words, the surface area of a cube is the area of the six squares that cover it. The area of one of them is a*a, or a 2. Since these are all the same, you can multiply one of them by six, so the surface area of a cube is 6 times one of the sides squared.Example: Find the surface area of the following cuboid. Solution: Total area of top and bottom surfaces is 2 × 5 × 6 = 60 in 2. Total area of front and back surfaces is 2 × 5 × 3 = 30 in 2. Total area of the two side surfaces is 2 × 6 × 3 = 36 in 2. Surface area of cuboid = 60 + 30 + 36 = 126 in 2. or.She determines the surface area of material she needs to create her hat with a radius of 1 foot and a height of 0.5 feet as follows: lateral SA = π × 0.4√ 0.4 2 + 0.5 2 = 0.805 ft 2. Cube. The surface area of a cube can be calculated by summing the total areas of its six square faces: SA = 6a 2 where a is the edge lengthThe surface area formula for a cube is 6 x side 2, as seen in the figure below: This calculation requires only one measurement, due to the symmetricity of the cube. side 2 is the surface of one of the sides, and since the cube has 6 equal sides, multiplying by 6 gives us the total cube surface area. E.g. to find the surface area of a cube with ...17 Jan 2024 ... Faritra ambonin'ny goba. Ny cube dia endrika mivaingana tsy tapaka manana endrika efamira enina(6), vertex valo ary sisiny roa ambin'ny folo ...16 Dec 2019 ... Answer:Total surface area = 864cmsquareLateral surface area= 576cmsquare Step-by-step explanation:Surface area of cube = 6 × (l)square units ...A cube is a 3D solid, so the area occupied by all the six congruent squares is known as the surface area of the cube. Therefore, to calculate the surface area of a cube, we need to calculate the area of all the six squares, and then find the sum of the area of all the square faces. Let ‘\(a\) ’ be the edge of the cube. Area of one square ...A cube has eight corners. The corners of a cube are called vertices. The vertices are points where two adjacent sides of a cube meet. A cube is a three dimensional box like structu...Solution: We need to find the side length of the cube when given its total surface area. The formula for the total surface area (TSA) of a cube is TSA = 6s 2. Given that the total surface area of the cube is 216 square meters, we can set up the equation as follows: 216 = 6s 2. To isolate the side length, we divide both sides of the equation by 6:Let us consider a cube of edge length 'x'. As each of its faces is a square, the area of each face = x 2 square units. Thus, The lateral surface area (LSA) of the cube = sum of areas of all 4 side faces. ⇒ LSA of cube = x 2 + x 2 + x 2 + x 2 = 4x 2. Thus, the formula to find the lateral surface area of a cube is, LSA = 4x2.10 Oct 2017 ... We can go right ahead and square the length of the side to get the area of one side of the cube, which is 8 x 8 = 64. Then we take the area of ...You can find the surface area of a cube by finding the area of the cube and then multiplying the area by the total number of edges. For example, if the length of a side of a cube is 6 feet, the area of the cube will be 36. Now by using the surface area formula: Surface Area = 6×a 2. Substituting the Value of the area of the cube,Let us consider a cube of edge length 'x'. As each of its faces is a square, the area of each face = x 2 square units. Thus, The lateral surface area (LSA) of the cube = sum of areas of all 4 side faces. ⇒ LSA of cube = x 2 + x 2 + x 2 + x 2 = 4x 2. Thus, the formula to find the lateral surface area of a cube is, LSA = 4x2. (The surface area of a cube is equal to the area of one face of the cube multiplied by 6 sides. In other words, if the side of a cube is s, then the surface area of the cube is 6s 2.) Each square tile has an area of 5 m 2. Therefore, the total number of square tiles needed to fully cover the surface of the cube is: 3,750m 2 /5m 2 = 750Surface area of a cube: A = 6a², where a is the side length. Surface area of a cylinder: A = 2πr² + 2πrh , where r is the radius and h is the height of the cylinder. …Suppose, out of the six faces of a cube, we only find the area of the four faces, leaving the bottom and top faces. In such a case, the area of these four faces is called lateral surface area of the cube. So, lateral surface area of a cube of side s is equal to \(4s^2\). Example: Hameed has built a cubical water tank with lid for his house ... Faces found in a cube. A face is any of the flat surfaces of a cube. Cubes are made up of six square faces. Since a cube is a regular hexahedron, all the faces have the same shape and the same area. Another …Calculating volume of a cube. We use this formula to calculate the volume of a cube: \ [\begin {align} \text {Volume of cube} &= \text {length} \times \text {breadth} \times \text {height} \\ &= l^3 \\ \end {align}\] We can also express the formula for the volume of a cube as the product of the area of the base and the height of the cube.The surface area of a cube represents the sum of the areas of all the faces of the cube. On the other hand, volume is a measure of the three-dimensional space occupied by the cube. We can calculate the surface area of a cube using the formula A=6a² and we can calculate its volume using the formula V=a³, where a is the length of one of the ... To find the surface area using the slant height, we use the formula: SA = a2 + 2×a×l. 🔎 Proof: The surface area of a square pyramid is the sum of the areas of its square base and four triangular faces: SA = BA + (4 × FA) The area of a triangle is half of the product of its base length ( a) and height ( l ): FA = a×l/2.
Short bones in the human body are often cube-like, their length, width, and height are all about the same. Short bones in the human body are often cube-like, their length, width, a.... Shakira 2023
Q 1. The volume of a cube is 343 cm3. Find its surface area. View Solution. Q 2. Find the surface area of a cube whose volume is 216 cm3. View Solution. Q 3. The volume of a cube is 729 cm3.Volume: The volume of a cube can be calculated by finding the product of its length, width, and height. Diagonal: A cube has three sets of diagonals, connecting opposite vertices and passing through the center of the cube. Surface Area: The surface area of a cube can be found by summing the areas of all its faces. Ice cubes melt the fastest when they have the most possible surface area relative to their volume. In general, rounder shapes melt more slowly than flatter shapes do. Conversely, i...The lateral surface area of a cube is 100 m 2. The volume of the cube is: View Solution. Q2. Find the total surface area of a cube whose volume is 64 m 3. View Solution. Q3. Question 7 The lateral surface area of a cube is 256 m 2. The volume of the cube is: A) 512 m 3 B) 64 m 3 C) 216 m 3 D) 256 m 3 ...Surface area of cube is defined as the total area covered by all the faces of a cube. In geometry, a cube is a solid three-dimensional form of a square. A cube has six square faces, eight vertices, and twelve edges. A Rubik’s cube, sugar cubes, an ice cube, dice, etc., are some examples of cubes. Since the six faces of a cube are squares, the ...Solution: We need to find the side length of the cube when given its total surface area. The formula for the total surface area (TSA) of a cube is TSA = 6s 2. Given that the total surface area of the cube is 216 square meters, we can set up the equation as follows: 216 = 6s 2. To isolate the side length, we divide both sides of the equation by 6:The surface area formula for a cube is 6 x side 2, as seen in the figure below: This calculation requires only one measurement, due to the symmetricity of the cube. side 2 is the surface of one of the sides, and since the cube has 6 equal sides, multiplying by 6 gives us the total cube surface area. E.g. to find the surface area of a cube with ...We now have the formula to calculate the surface area of a cube. Let’s look at a worked example. For a cube with an edge of 8 cm, we can calculate the surface area like so: A = 6a 2. A = 6 * 8 2 = 384 cm 2. Now you know how to find the surface area of a cube and the formula to apply.4 Mar 2022 ... In this video you will be shown how to find the surface area of a cube without a top. To do this find the area of one of the square faces, ...Jun 24, 2023 · The formula for determining the surface area of a cube is defined as: S A = 6 ⋅ a 2. S A: the surface area of the cube. a: the length of any side. The SI unit of surface area is: s q u a r e m e t e r ( m 2) Area Unit Converter. Volume: The volume of a cube can be calculated by finding the product of its length, width, and height. Diagonal: A cube has three sets of diagonals, connecting opposite vertices and passing through the center of the cube. Surface Area: The surface area of a cube can be found by summing the areas of all its faces. Maths Math Article Cube Cube In Maths or in Geometry, a Cube is a solid three-dimensional figure, which has 6 square faces, 8 vertices and 12 edges. It is also said to …Length of the side of the cube, a = 20 in. Using the formula for the area of the cube, which is: A = 6 a 2, A = 6 × 20 × 20 i n 2. A = 2400 i n 2. Therefore, the surface area of the cube is 2400 square inches. 2. Kevin has been given a cube of base area 25 square units. For the surface area of a cube, the length of its sides multiplied by six equals the surface area. This is represented by 6a 2, where a denotes the side length. In essence, it is a measure of the total surface area. Formula of the surface area of cube = 6a2. Solved Examples. Ques. Find the surface area of a cube of a side length of 8 cm. Ans. .