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Question

asked Sep 8, 2020 74.6k views

1 Answer

Lukas Risko · Answer 1 · 2020-09-14T05:14:27+0000

Answer:

a)
$40\pi ft^3$

b)125.68ft³

Explanation:

The formula for volume of a cylinder is

$V=\pi *r^2*h$

Given in the question

Diameter=4ft and height =10ft

You know radius is half the diameter,

radius, r=4/2= 2ft

Finding the volume in terms of pi

$V=\pi *r^2*h\\\\V=\pi *2*2*10\\\\\\V=40\pi ft^3$

Substitute pi with its value,

pi=3.142

Find volume

$V=\pi *r^2*h\\\\\\V=3.142*2*2*10\\\\V=125.68ft^3$