Question

ratio between the CFA and TSA of a right circular cylinder is 1 is to 2 find the ratio between the height and radius of a cylinder

Answer 1

Given,
$\: \: \: \: \: \: \frac{2\pi \: rh}{2\pi \: r(r +h )} = \frac{1}{2} \\ = > \frac{h}{r + h} = \frac{1}{2} \\ = > 2h = r + h \\ = > 2h - h = r \\ = > h = r$
Therefore,
$\frac{h}{r} = \frac{1}{1}$
=>h:r = 1:1.




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