Question

The perimeter of a face of a cube is 16 mm. What is its volume? 64 mm3 128 mm3 512 mm3 4096 mm3

Answer 1

Perimeter of square = 4 x side length
16 = 4 x side ===> side =4

Volume of cube = side x side x side ===> V=4 x 4 x 4 = 4³ = 64 mm³

Answer 2

The volume of a cube is s cubed (s being any edge of the cube.) You divide the perimeter by 4 to get the length of one edge. 16:4= 4. Then you cube 4.
4•4•4= 64. So the answer is 64 mm cubed.