From a solid cylinder of height 15cm and radius of base 8cm, a conical cavity of same height And same diameter is carved out find the total surface area and the volume of the remaining solid?
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Answer:
Area = πr²h
22\7 x 8 x 8 x 15
= 3O17.143 cm²
Conical cavity area = 22\7 x 4 x 4 x 15
=754.2857cm²
3O17.143 - 754.2857 = 2262.8573cm² ( Ans )
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