Question

Helena wants to paint a box in the shape of a cube with sides that are 18 inches long. what is the surface area that Helena will paint?

Answer 1

Explanation:

1944 Inches Squared

Explanation:

Surface area Formula for a Cube:

The "edge", which is also the side, is 18 inches.

Solve the formula.

Answer 2

1944 Inches Squared

Explanation:

Surface area Formula for a Cube:

`A = 6a^2`

The "edge", which is also the side, is 18 inches.

`a = 18`

Solve the formula.

`A= 6a^2 = 6(18)^2 = 6 * 18^2\\18^2 = 324\\324 * 6 = 1944\\A=1944`

The cube's surface area should be 1944 square inches.