A telephone is 30 feet tall with a diameter of 12 inches. Jacob is making a replica of telephone pole and wants to fill it with sand to help it stand freely. find the volume of his model which has a height of 30 inches and a diameter of 1 inch, to the nearest tenth of a unit use 3.14 for [tex]\pi[/tex]
The answer is 23.6 The formula of volume for a cylinder is V = [tex] \pi [/tex] [tex] r^{2} [/tex] h So you take the diameter and divide it by 2 and you get .5 and then you solve the equation. So 3.14 x [tex] .5^{2} [/tex] x 30 = 23.6
