give me full solution of question 11
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Here, it is given that-
Base area of cylinder = 120
=> 2πr = 120
hence, {(2)(22)r}/7 = 120 cm^2
thus,. r = (120 X 7)/44
= 840/44 = 210 / 11 cm
Also Curved surface area of the cylinder=2πrh
hence,. 480= 2(22)(210)h/11 X 7 = 120 h
Thus, h = 480/120 = 4 cm
Hence, volume = πhr^2
= (22)(4)(210)(210)/(11)(11) = 4581 approx
Base area of cylinder = 120
=> 2πr = 120
hence, {(2)(22)r}/7 = 120 cm^2
thus,. r = (120 X 7)/44
= 840/44 = 210 / 11 cm
Also Curved surface area of the cylinder=2πrh
hence,. 480= 2(22)(210)h/11 X 7 = 120 h
Thus, h = 480/120 = 4 cm
Hence, volume = πhr^2
= (22)(4)(210)(210)/(11)(11) = 4581 approx
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