Question

A rectangular sheet of card paper 44cm×20cm in size is rolled along its length and a cylinder is formed .Find the volume of cylinder.​

Answer 1

44× 20 = the correct answer is 880 please mark as brilliant

Answer 2

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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