A gift box shown below has a square base with an area of 81 square centimeters. The volume of the gift box is 216 cubic centimeters. What is the height of the gift box?

Question

I need help with this math question.

Answer 1

216/81 = 2 2/3 centimeters in height

Volume = length times width times height

V=LWH

H=V/LW

H = 216/(9)(9)

the bottom is a square, so its sides are equal

L=W=sqr81 = 9

H = 216/81

H = 2 54/81

H = 2.666....

H = 2 2/3 cm high