A wooden toy is made by scooping out a hemisphere of same radius from each of them is being 3.5 cm and it's base is of radius 3.5 cm,find the volume of the wood in the toy .(use π=22/7)
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Given height of cylinder =10 cm
Radius of cylinder =3.5 cm
The volume of toy= Volume of cylinder −2×Volume of a hemisphere
=πr
2
h−(2×
3
2
πr
3
)
=[π(3.5)
2
×10]−(2×
3
2
×π(3.5)
205.251 cm
3
Radius of cylinder =3.5 cm
The volume of toy= Volume of cylinder −2×Volume of a hemisphere
=πr
2
h−(2×
3
2
πr
3
)
=[π(3.5)
2
×10]−(2×
3
2
×π(3.5)
205.251 cm
3
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