Question

Solve this problem a rectangular piece of paper of breadth 5 cm and large 44 cm is rolled without overlapping to form a cylinder of 5 cm find the TSA and TSA of the cylinder so formed

Answer 1

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