2022 SSMO Team Round Problems/Problem 12

Problem

Regular pentagon $ABCDE$ is inscribed in circle $\omega_1$ with radius $5\sqrt{5}$. Circle $\omega_2$ is the reflection of $\omega_1$ across $\overline{AB}$. Let $I$ be the intersection of $\overline{AD}$ and $\overline{BE}$, let $P$ be an intersection of $\overline{DO}$ and $\omega_2$, and let line $\ell$ be the tangent to $\omega_2$ at $P$. The sum of the possible distances from point $I$ to line $\ell$ can be expressed as $m\sqrt{n}$, where $n$ is a squarefree positive integer. Find $m+n$.

Solution