Q. The height of a right circular cylinder is 6 m. Three times the sum of the areas of its two circular faces is twice the area of the curved surface . Find the radius of its base.

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Solution

(2πr^2)3=22πrh
6πr^2=4πrh
6r=4h
r=4h/6=4*6/6=4

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Q. The height of a right circular cylinder is 6 m. Three times the sum of the areas of its two circular faces is twice the area of the curved surface . Find the radius of its base.

(2πr^2)*3=2*2πrh 6πr^2=4πrh 6r=4h r=4h/6=4*6/6=4

(2πr^2)3=22πrh
6πr^2=4πrh
6r=4h
r=4h/6=4*6/6=4