Question

A cement company is making 8 solid-cement spheres. Each sphere has a diameter of 2.5 ft.

Approximately how much concrete is needed to make all 8 spheres?

Answer 1

65.4

Explanation:

Sphere volume= r3•pi4/3

Answer 2

We need 8 cement spheres. With each on sphere being made, we use 2.5ft of cement.

To figure out this problem, all we need to do is 8 x 2.5

8 x 2.5ft = 20ft

~Hope this helps~