Question

The figure is made up of a cylinder and a spear which has been cut in half. The radius of each half sphere is 5 mm. What is the volume of the composite figure? Use 3.14. Round to the nearest hundredth

Answer 1

V = 785 + 523.33 = 1,308.33 (mm³)

Explanation:

Answer 2

The volume of the cylinder should be:

V = Bh = πr²h = 3.14 · 5² · 10 = 785 (mm³)

The volume of the sphere should be:

V = 4/3 · πr³ = 4/3 · 3.14 · 5² ≈ 523.33 (mm³)

=> The total volume of the composite figure is:

V = 785 + 523.33 = 1,308.33 (mm³)