Question

If one edge of a cube is 3 inches long, what is the surface area of the cube? A. 9 square inches B. 18 square inches C. 27 square inches D. 30 square inches E. 54 square inches

Answer 1

The correct answer option is E. 54 square inches.

Explanation:

We are given that the length of one edge of a cube is 3 inches long and we are to find its surface area.

We know that the formula of the surface area of a cube is given by:

`Surface Area of Cube = 6 a^2`

Substituting the given values in the above formula to get:

Surface area of cube
`= 6(3)^2 =` 54 square inches