a spherical ball is divided into two equal halves in the cut surface area of each half is 56. 57 centimetres square find the volume of the spherical ball
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Surface area of sphere = 4πr^2
4πr^2 = 2*56.27
Then r^2 =8.9 so r =3 aproximately
Then volume for sphere
4/3πr^3
4πr^2 = 2*56.27
Then r^2 =8.9 so r =3 aproximately
Then volume for sphere
4/3πr^3
ChownikaaSri:
no.. it isn't 2*56.57. it is 4* 56.57
Sorry but I guess you are wrong because cut surface area contains half the surface area of sphere + the circular area too..
oh yea k
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here pi*r^2=56.57cm^2
so r^2=56.57/3.14=18.015=18(approx.)
r=root(18)=3(root2)
volume=4/3*pi*r^3=4/3*22/7*(3(root2))^3
=88*18*root2/7=1584*root2/7
Sorry but I guess you are wrong because cut surface area contains half the surface area of sphere + the circular area too..
mm yea
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