Question

What is the volume of a cube?i. the area of each face of the cube is 64 square metres. ii. the length of one side of the cube is 8 metres?

Answer 1

yes, a2=64
therefore,a=8m

Answer 2

volume of cube with side 'a' = a^3
area of a face means area of a square with side a =a^2 =64sq.m
so a=(64)^0.5 =8m
then volume of cube = 8^3 =512 cubic meter