Question 6The circle has center $C$, with $F,G,H$ on the circle. If $\angle GFH=60^\circ$, find $\angle GCH$ in radians. $\frac{2\pi}{3}$$\frac{4\pi}{3}$$\frac{5\pi}{3}$$\frac{3\pi}{4}$$\frac{2\pi}{5}$
