Question

lesson 8: surface area and volume
cube surface area and volume formulas
what is the surface area of a cube with a side length of 10 inches?
a. 600 inches squared
b. 300 inches squared
c. 60 inches squared
d. 200 inches squared
check answer

Explanation:

Step1: Recall cube surface area formula

A cube has 6 square faces. The area of one square face with side length \( s \) is \( s^2 \). So the surface area \( SA \) of a cube is \( SA = 6s^2 \).

Step2: Substitute \( s = 10 \) inches

Substitute \( s = 10 \) into the formula: \( SA = 6\times(10)^2 \).
First, calculate \( 10^2 = 100 \). Then, \( 6\times100 = 600 \).

Answer:

a. 600 inches squared