Question

the radius and the height of a cylinder are in ratio 7:3 ,if the volume of the cylinder is12474cm cube find the curved surface Area and the total surface area of cylinder

Answer 1

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Answer 2

given r:h=7:3
r=7x h=3x
vlum=22/7r
x=3
radius=21
hight=9
curved surface area=1188cm cube
total surface area=3960cm cube