A solid cylinder has total surface area of 462 sq. Cm . Its curved area is one third of its total surface area. Find volumee of cylinder
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tsa of cylinder = 462 sq cm
csa = 1/3 ×462 = 154 sq cm
remanning area = 462 -- 154 = 308 sq cm
2πr ^2 = 2 ×22/7 ×r×r = 308
r×r = 308×7/44
r = √49
r = 7 cm 2πrh = 154
44/7 ×7 ×h = 154
h = 7/2 cm
volume = 22/7 ×49 × 7/2
539 cm^3
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