a toy is the shape of a cone mounted on a hemisphere if the radius of hemisphere is 4.2cm and total height of toy is 10.2cm find the volume of toy
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Answer:
Given that,
A toy is in the form of a cone mounted on a hemisphere.
radius of the common base (r)=4.2cm
total height of the toy=10.2cm
height of cone =10.2–4.2
=6cm
volume of cone=1/3πr²h
=1/3×22/7×4.2×4.2×6
=22×0.6×4.2×2
=110.88cm³
volume of hemisphere=2/3πr³
=2/3×22/7×4.2×4.2×4.2
=44×0.2×4.2×4.2
=155.232cm³
total volume of toy=volume of cone +volume of hemisphere
=110.88+155.232
=266.112cm³
hope it works........................™✌️
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