Question
The perimeter of semicircle is 36 cm and the radius of
the semicircle is equal to the height of a Cylinder whose volume is 198 cm 3 . then find the radius of that cylinder.Solution
The perimeter of semicircle = 36 (Ο ΓR) + 2R = 36 22/7 R + 2R = 36 R = 7 cm Hence height of cylinder = 7 cm 
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