Googly Eyes

Geometry Level 3

In the figure above, the value of $\overline{AB} = 8$ , find the radius of the circle $C_2$ .

\frac{\pi}{3}

\frac{5}{7} \sqrt{2}

\frac{4}{7} \sqrt{3}

2 \sqrt{2} - 1

\frac{1}{2}

1