1.

A rectangular sheet of dimensions 33 cm × 18 cm is rolled along itsbreadth to form a cylinder. Find the radius of the cylinder.

Answer»

Ans :- If the cylinder is rolled along its breath it's breadth becomes height of the cylinder and the length becomes the circumference of the circle of cylinderso, circumference=2πr33=2×(22/7)×rr=33×(7/22)×2r= 10.5cm

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