Question

A cylindrical garbage can has a radius of 2.8 feet holds approximately 86.21 cubic feet of trash. Find the approximate height of the garbage can.

3.5 ft
9.8 ft
5.2 ft
1.9 ft

Answer 1

v=hpir²
solve for h just for fun
divide both sides by pir²
v/(pir²)=h

given
v=86.21
r=2.8
pi=3.141592
86.21/(3.141592*2.8²)=h
3.5=h

answer is 3.5ft