If the ratio between the curved surface area and the total surface area of a right circular cylinder is 1:2, then the ratio between the height and radius of the cylinder is
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2pie ×rh : 2pie r(r+h) =1:2
h:r+h=1:2
2h=r+h
h=r
h:r=1:1 Ans
h:r+h=1:2
2h=r+h
h=r
h:r=1:1 Ans
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