The ratio of radii of two spheres is 2:3.find the ratio of their surface areas and volumes.
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surface area of sphere is proportional to r^2 so ratio of surface areas is
2square/3square=4/9
similarly volume is proportional to r^3 so ratio of volumes is
2cube/3cube=8/27
2square/3square=4/9
similarly volume is proportional to r^3 so ratio of volumes is
2cube/3cube=8/27
smanogna:
Thank u very much
hello ihave a doubt that for surface area why we are taking lateral surface formula why not total surface formula
its a sphere so it doesnt have any base or ceiling so the lateral and total surface formula are same
thank u
Answered by
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area ratio is 4:9 and
volume ratio is 8:27
volume ratio is 8:27
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