Question

What is the side length of a cube that has a volume of 729 cubic inches?

9 inches
7 inches
8 inches
10 inches

Answer 1

9 inches because it couldn’t be any other number.

Answer 2

a. 9 inches.

Explanation:

a. 9 inches

b. 7 inches

c. 8 inches

d. 10 inches

Just cube the answers and the one that equals 729 is the answer.

a. 9*9*9 = 729

b. 7*7*7 = 343

c. 8*8*8 = 512

d. 10*10*10 = 1000