Question

what is the approximate volume of a tree trunk if the trunk is 13 feet tall with a circumference of 4.5 feet

Answer 1

Volume of a cylinder is
`\pi r^(2) h`
C =
`\pi 2r`
4.5/2
`\pi` = r
0.7162 = r

`\pi r^(2) 13` = 20.91

Answer 2

V=21.17³

Explanation:

c=2πr

4.5=2(3.14)r

4.5/6.28=6.28r

6.28s cancel each other out

7.16=r

round

V=πr²h

V=21.17³