a toy is in the shape of smaller solid hemisphere mounted on a bigger solid hemisphere. radius of bigger hemisphere is 2 cm and that of the smaller is 1 cm. find the total surface area of the toy
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Csa of biggerr hemisphere =2×22/7×2×2
=176/7
Csa of smaller hemisphere @ =2×22/7×1×1
=44/7
Tsa of toy = 176/7+44/7
=31.4m^2
=176/7
Csa of smaller hemisphere @ =2×22/7×1×1
=44/7
Tsa of toy = 176/7+44/7
=31.4m^2
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