Question

Find the volume of a right circular cylinder that has a radius of 3 inches and a height of 8 inches

a24 pi in³
b72pi in ³
c48pi in ³
d192pi in³​

Answer 1

b.
`72\pi \: {in}^(3)`

Explanation:

Radius of cylinder r = 3 inches

Height of cylinder h= 8 inches

`V_(cylinder) = \pi {r}^(2) h \\ \\ = \pi * {(3)}^(2) * 8 \\ \\ = \pi * 9 * 8 \\ \\ = 72\pi \: {in}^(3)`

Answer 2

Answer: A

To find a cylinder’s volume, multiply radius • height • pi

Formula: 3.14 • r • h