Q. 103.9( 31 Votes )

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Answer :

Radius of the circular base, r = 3cm

Height of cone, h = 4cm






V =3.14×3 × 10


V = 94.20 cubic cm


Now,




SC = 3.14 × 3 × 5


SC = 47.1 sq.cm


Surface area of sphere, SS = 2πr2


SS = 2× (3.14) × 32


SS = 56.52 sq.cm


Surface area of toy = 47.1 + 56.52 = 103.52 sq.cm


Volume and surface area of toy is 94.20 cm3 and 103.52 cm2 respectively


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