Tick the correct option:
If the diameter of a cylinder is 8 cm and height is 52.5 CM then its curved surface area is,
a) 1320 cm __
b) 1320 ²cm __
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correct answer is option (a) 1320cm2
curved surface area of cylinder =2πrh
=2*22/7*4*52.5
=2*22*4*7.5
=1320cm2
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