the radii of two spheres are in the ratio 1:2 of their surface is
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swapnil46:
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r1=1,r2=2
area of two surfaces of sphere=4*pi*r1^2/4*pi*r2^2
=r1^2/r2^2
=(1/2)^2
=1/4
area of two surfaces of sphere=4*pi*r1^2/4*pi*r2^2
=r1^2/r2^2
=(1/2)^2
=1/4
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