Question

A plumbers plastic pipe is 4 m long, has an inside diameter of 4.0 cm and an outside diameter of 5.0cm. What is the volume of the plastic in the pipe?

Answer 1

Answer:
`V=0.0028278\ m^3`

Explanation:

Given

Length of the pipe
`l=4\ m`

Inside diameter of the pipe
`d_i=4\ cm`

Outside diameter of the pipe
`d_o=5\ cm`

Volume of the pipe

`\Rightarrow V=(\pi )/(4)[d_o^2-d_i^2]\\\\\text{Insert the values}\\\\\Rightarrow V=(\pi)/(4)[5^2-4^2]* 10^(-4)* 4\\\\\Rightarrow V=28.278* 10^(-4)\ m^3\\\\\Rightarrow V=0.0028278\ m^3`