Math, asked by graceluhan8874, 1 year ago

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

Answers

Answered by nikolatesla2
16

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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