Question

A square sheet of paper of side 22cm is
rolled to form a cylinder. Find the radius
of the cylinder​

Answer 1

Answer:

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Step-by-step explanation:

Circumference of the cylinder base = 22cm (since side of the square = 22cm)⇒ 2πr = 22 cm⇒ 44/7r = 22∴ r = (22×7)/44 = 7/2 cm.Now height is also of 22cm.∴ volume of the cylinde = πr2hV =(22/7)×(7/2)×(7/2)×22 cubic cmV = 847 cubic cm.

Answer 2

Answer:

radius of cylinder=3.5cm

a^2=2πrh

22×22=2×22/7×r=22

r=3.5