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A cylinder is 3m high and it's circumference of its base is 22m Find its curvedsurface area.O 66 sq.m33 sq.m122 sq.mO32 sq.m​

Answer»

Given:

• Height of the CYLINDER (h) = 3m

• circumference of it's base = 22 m

To find:

• curved surface area of the cylinder :

Solution:

• First find RADIUS :

=> Circumference = 22

=> 2πr = 22

=> r = 22/2×7/22

=> r = 7/2 m

• Radius = 7/2 m

• As we KNOW that ,

• CSA of cylinder = 2πrh

=> CSA of cylinder = 2(22/7)(7/2)(3)

=> CSA of cylinder = 22×3

=> CSA of cylinder= 66 sq. m


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