Question

What is the surface area of a cube if its height (a side) is 3cm?

Use the formula SA = 6 (side squared)

A. 45

B. 54

C. 25

D. 36

Answer 1

Option B

Explanation:

`\text {Formula given: }SA=6s^2\\s-\text{side}`

The side is 3cm.

`SA=6(3)^2\\\text {PEMDAS: Exponents First!}\rightarrow3^2=9\\\\SA=6*9\\\boxed {SA=54}\\`

The surface area is 54cm^2. Therefore, Option B should be the correct answer.

Brainilet Appreciated.

`\text {Option B is correct. The surface area of the cube is 54cm^2}`