The thickness of a hollow wooden cylinder is `2 cm.` It is `35 cm` long and its inner radius is `12 cm.`
Find the volume of the wood required to make the cylinder, assuming it is open at either end.

Explanation

Volume=total volume-volume of inner cylinder

Volume of cylinder`=pir^2hcm^3`

`piR^2h-pir^2h`

`pih(R^2-r^2)`

`22/7xx35(14^2-12^2)`

`5720cm^3`.