Question

Find the volume of a sphere with a diameter 40 cm in length. Approximate pi as 3.14 and round your answer to the nearest tenth.

Answer 1

volume of a sphere : V = 4/3 * pi * r^3......and the radius (r) is half the diameter....so ur radius is (40/2) = 20
now lets sub
V = 4/3 * 3.14 * 20^3
V = 4/3 * 3.14 * 8000
V = 32,000/3 * 3.14
V = 100480/3
V = 33493.3 cm^3 <===