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CBSE Class 9 Answered

tsa of cylinder = 462 cm2 .csa is 1/3 of tsa. find the volume of cylinder.
Asked by nmenghani | 12 Jan, 2010, 08:44: PM
answered-by-expert Expert Answer

CSA of cylinder = 2πRH = (1/3)TSA

 2πRH = (1/3)(462) = 154 

(2πRH + 2πR2) = 462

154 + 2πR2 = 462

R = [(462-154)/(2π)]

= 7 cm

H = 154/(2πx7)

= 3.5 cm

Volume of cylinder = (πR2)H = (22/7)(7)(7)(3.5) = 539 cm2

Regards,

Team,

TopperLearning.

Answered by | 12 Jan, 2010, 09:20: PM

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