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Author: daniyar
Problem has been solved: 190 times

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The distance from some point $P$ to line $l$ is 12. We choose some point $T$ on $l$ such that $PT=13$. Radius of the circle, passing through $P$ and tangent to $l$ at $T$ can be represented as an irreducable fraction $\frac{m}{n}$. Find $m+n$.

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