Question

the formula for the surface area of a cube with side length ( s ) is ( sa = 6s^2 ).
find the surface area of a cube with a side length of 3 inches?
a 48 square inches
b 36 square inches
c 54 square inches
d 324 square inches

Explanation:

Step1: Identify the formula and given value

The formula for the surface area (SA) of a cube is \( SA = 6s^2 \), and the side length \( s = 3 \) inches.

Step2: Substitute the value of s into the formula

Substitute \( s = 3 \) into \( SA = 6s^2 \). First, calculate \( s^2 \): \( 3^2 = 9 \). Then multiply by 6: \( SA = 6\times9 = 54 \).

Answer:

C. 54 square inches