A rectangular sheet of paper 44cm x 20cm is rolled along its length to form a cylinder.Find the volume of the cylinder so formed??
Given : The length (l) and breadth (b) of the rectangular sheet are 44 cm and 20 cm
Now the sheet is rolled along the length to form cylinder.
Let the redius of the cylinder be r.
Then height (h) = b = 20 cm
and circumference = 44 cm
⇒ 2πr = 44 cm
⇒ r = 7 cm
Hence volume of cylinder formed = πr2h
= 3080 cm3