A rectangular sheet of paper, 44 cm*20 cm is rolled along its lenght to form a cylinder. Find the vol. Of the cylinder so formed.
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Its folded along its length so its length will be circumference of the base
2 πr = 44
πr = 22
22/7 r = 22
r = 7 cm
height = 20 cm
Volume will be πr^2 h = 22/7 x 7 x 7 x 20 = 3080 cm cube
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