the radius and height of a cylinder are in the ratio 11 ratio 7 if the curved surface area of the cylinder is 121 square unit then find its height and radius
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Step-by-step explanation:
CSA=121 square units
Radius:Height = 11:7
Consider Radius as 11x and Height as 7x
121= 2×22÷7×11X×7X
121=44×77x^2÷7
121=44×11x^2
121÷44×11=x^2
1÷4=x^2
1÷2=x
radius=5.5 and Height 3.5
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