Q5 of 45 Page 11

The area of the base of a right circular cylinder is 616 cm2 and its height is 2.5 cm. Find the curved surface area of the cylinder.

Given: Area of base of cylinder = 616 cm2


Height of cylinder = 2.5 cm


To find: CSA of cylinder.


Formula Used:


Area of circle = πr2h


CSA of cylinder = 2πrh


Explanation:


Let the radius of cylinder = r cm


As area of base of cylinder = 616 cm2


⇒ πr2 = 616



=28×7



=14 cm


∴ Curved surface area of cylinder =


=220 cm2


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