the radius and height of a cylinder are in the ratio 5 is 7 and its volume is 550 cm cube find the radius
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let radius and height of the cylinder is 5a and 7a respectively
volume= (22/7) X (5a)^2 X (7a) = 550 cm^3
=(22/7) X 25a^2 X 7a = 550
=(22/7) X 25 X 7 X a^3 = 550
=a^3 = (550 X 7) / (22 X 25 X 7) = 1
=a = (1)^1/3 = 1
=a = 1
radius = 5a = 5cm
& height = 7a = 7cm
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