Question no 13 .Pls answer.
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volume of sphere = volume of cone
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volume of sphere=volume of cone
4/3πr1^3=1/3πr2^2h
4r1^3=r2^2h
4×7.8×7.8×7.8=r2^2×31.2
r2^2=4×7.8×7.8×7.8/31.2
r2^2=60.84
r2=7.8cm
d2=7.8×2=15.6cm,
where r1, r2, h, d2 are radius of sphere, radius of cone, height of cone and diameter of cone respectively.
4/3πr1^3=1/3πr2^2h
4r1^3=r2^2h
4×7.8×7.8×7.8=r2^2×31.2
r2^2=4×7.8×7.8×7.8/31.2
r2^2=60.84
r2=7.8cm
d2=7.8×2=15.6cm,
where r1, r2, h, d2 are radius of sphere, radius of cone, height of cone and diameter of cone respectively.
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