a rectangle piece of paper =22cmlongand 12cm broad is rolled along its length to form a cylinder. find volume of the cylinder so formed
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Length of cylinder formed = 12 cm
Circumference of base of cylinder formed = 22 cm
C = 2 π r = 22
⇒ 2 * 22/7 * r = 22
⇒ r = 22 * 7 / 22 * 2
⇒ r = 7/2
Volume of cylinder = π r² h
V = 22/7 * 7/2 * 7/2 * 12
= 462 cm²
Circumference of base of cylinder formed = 22 cm
C = 2 π r = 22
⇒ 2 * 22/7 * r = 22
⇒ r = 22 * 7 / 22 * 2
⇒ r = 7/2
Volume of cylinder = π r² h
V = 22/7 * 7/2 * 7/2 * 12
= 462 cm²
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