What is the surface area of 8cm cube?
1 Answer
I need a little bit more info, it is one of two answers below that I calculated for you.
Explanation:
In order to answer this question, I need a little bit more information. Is 8cm the volume of the cube or is it the length of one side? I can work it either way but the answers will be different.
First, lets work it as if 8cm is the volume. We know that volume is L x W x H and our figure is a cube (all sides must be equal). Using that information we can use the cube root of 8 to find the length of a side = 2. Because we know that the length equals the width (def. of a cube) we can simply square the value 2 to find the area of one side of the cube, which is 4. Since a cube has 6 sides, we simply multiply the area of one side of the cube by the number of sides and we have the surface area of the cube, which is 6 x 4 = 24cm squared.
If 8cm is the length of one side we simply don't have to perform the first step demonstrated above. 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 the side and multiply it by the number of sides, which is 64 x 6 = 384. Therefore, the surface area of the cube would be 384cm squared.
