Question

What is the volume of a right circular cylinder with a radius of 3 in. and a height of 10 in.?
o 30pi in^3
o 60pi in^3
o 90pi in^3
o 120pi in^3

Answer 1

Answer: Choice C  

90pi cubic inches

Work Shown:

$V = \pi*r^2*h\\\\V = \pi*3^2*10\\\\V = \pi*9*10\\\\V = \pi*90\\\\V = 90\pi$

This approximates to 90*3.14 = 282.6 cubic inches when using the approximation pi = 3.14

Use more decimal digits of pi to get a more accurate answer.