500
A company uses cardbaord tubes to make concrete posts for the foundation of a building. If a building requires 35 tubes, what is the volume of the concrete required?
d=.26
h=2.4
What is d/ 2 = .26 / 2 = .13
3.14 x .13x.13x2.4
V = .12736
Multiply by 35 because that is how many tubes you require. .12736 x 35
v = 5m3 of concrete.