A toy is in the 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.
(Take pi =22/7)
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Answer:
tsa of toy = csa of cone + csa of hemisphere
= pi r l + 2 pi r square
= pi r ( l + 2r )
= 22/7 *7/2 (25/4+ 2*7/2)
= 11 ( 25/4 + 28/4 )
11 ( 35 /4 )
= 583/ 4
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