Math, asked by aruna21, 1 year ago

the volume of a cylinder is 2512 cu cm and its height is 12.5 cm.find the radius of its base take pie. 3.14

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Answered by rohith48

Given,rh=23⇒h=3r2.....(i)Now,volume of cylinder=1617⇒πr2h=1617⇒227×r2×3r2=1617...[Using (i) ]⇒r3=343⇒r=7 cmh=3r2=3×72=212cmNow,TSA=2πr(r+h)=2×227×7(7+212)=770 cm2

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