A right-angled cone (with base radius $5$ cm and height $12$ cm), as shown in the figure below, is rolled on the ground keeping the point $P$ fixed until the point $Q$ (at the base of the cone, as shown) touches the ground again.

By what angle (in radians) about $P$ does the cone travel?

1. $\frac{5\pi}{12}$
2. $\frac{5\pi}{24}$
3. $\frac{24\pi}{5}$
4. $\frac{10\pi}{13}$

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