Question

the size of rectangular piece of paper is 100cm*44cm.A cylinder is formed by rolling the paper along its length .The volume of the cylinder is​

Answer 1

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The length of the rectangle be come the circumference of the base of the cylinder

∴2πr=44⇒r=7 ( where r is the redius of cylinder)

The wiedth og rectangle become the height of cylinder=100 cm

So volume of cylinder=πr

2

h=

7

22

×(7)

2

×100=15400cm

3

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