The radius and height of a cylinder are in the ratio 11:7. If the curved surface area of the cylinder i
quare cm, then find its height and radius
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According to the question,
The radius and height of a cylinder are in ratio 11:7
Let the radius be 11y and height be 7y
Now, curved surface area of the cylinder = 121 (Given)
The curved surface area of cylinder is given as 2rrh
Where "r" is the radius and "h" is the height
Plugging in values we get,
2πrh=121
2 x 3.14 x (11y) x (7y) = 121
483.56y? = 121
y2= 121 ÷ 483.56
y2 = 0.2502
y = 0.50
So radius = 11y = 11 x 0.50 = 5.5
Height = 7 x 0.50 = 3.5
Hope it helps
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