2022 SSMO Accuracy Round Problems/Problem 2

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Problem

Consider a cone with radius $5$ and height $12$, and a point $P$ in the same plane as the base of the cone, but a distance of $10$ from the center of the base of the cone. We rotate the cone $360^{\circ}$ about $P$ such that the plane that the base of the cone lies on stays the same. The volume of the region that the cone sweeps out can be expressed as $m\pi$. Find $m$.

Solution