Question

What is the best approximation of the volume, in cubic units, of a cylinder of diameter 10 and height 10?

Answer 1

Answer:

785.4 units³ (nearest tenth)

Step-by-step explanation:

volume of a cylinder = $\pi$r²h

where r is the radius and h is the height

diameter of a circle = 2r

where r is the radius

Therefore, 10 = 2r  ⇒  r = 5

Therefore, volume = $\pi$ x 5² x 10 = 250$\pi$ = 785.4 units³ (nearest tenth)