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
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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