Answered

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what is the surface area, in square inches, of a 8-inch cube?

Sagot :

surface area of a cube=6*s^2=6*8^2=384
TheBlueFox

Answer: 384 in²

Step-by-step explanation: Surface area is the sum of the areas of all of the faces of a three-dimensional figure.

So to find the surface area of a cube, it's important to understand that each face of a cube has the same area. So we can simply find the area of one face of a cube and multiply it by the number of faces which is 6.

To find the area of one face of a cube, we can use the formula for the area of a square.

Area = S²

Since the length of a side is 8 inches, we have (8 in.)² or 8 inches x 8 inches which gives us 64 in.².

Now, since there are 6 sides to a cube, we have (64 in.)² (6) which is equal to 384 inches².

Therefore, the surface area of the cube is 384 in².

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