5.A rectangular piece of paper is 22 cm long and10 cm wide. A cylinder

1.	5.A rectangular piece of paper is 22 cm long and10 cm wide. A cylinder is formed by rolling thepaper along its length. Find the volume of theBoard Term-II, 2013]cylinder
Answer» W.K.T radius of circle = 2 π r Given, 2πr = 22 cm = 2 * 22/7 * r = 22 = 22 * 7 / 22 * 2 = 7/2 Volume of cylinder = π r * r * h = 22/7 * 7/2 * 7/2 * 10(Given h = 10) = 385 cm^3

5.A rectangular piece of paper is 22 cm long and10 cm wide. A cylinder is formed by rolling thepaper along its length. Find the volume of theBoard Term-II, 2013]cylinder

Answer»

W.K.T radius of circle = 2 π r

Given, 2πr = 22 cm

= 2 * 22/7 * r = 22

= 22 * 7 / 22 * 2

= 7/2

Volume of cylinder = π r * r * h

= 22/7 * 7/2 * 7/2 * 10(Given h = 10)

= 385 cm^3