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a toy is in form of a cone of radius 3.5 cm mounted on a hemisphere of same radius the total height of the toy is 15.5 cm Find the total surface area of the toy |
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Answer» ONG>ANSWER: given, radius=3.5 cm height of toy=15.5 cm total SURFACE AREA of toy =C.S.A of cone + C.S.A. of hemisphere =πrl +2πr² =π×3.5×12 +2×π×3.5×3.5 cm =π×42+24.5×π cm take π as common =π(42+24.5)cm =π×66.5 cm =66.5×3.14 cm =156.38 cm² |
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