What is the measure of the reference angle for the angle measure?
Drag a reference angle measure into each box to match the angle measure. Drag measures of the same angle measure unit.
17π/5
614°
21π/4
240°
+605 Here we go.
a) $\frac{17\pi}{5}$ is in the third quadrant, and the angle is $\frac{7\pi}{5}-\pi=\boxed{\frac{2\pi}{5}}$.
b) $614$ is in the third quadrant, and the angle is $614-360-180=\boxed{74}$
c) $\frac{21\pi}{4}$ is in the first quadrant, so the angle is $\boxed{\frac{\pi}{4}}$
d) $240$ is in the third quadrant, so the angle is $240-180=\boxed{60}$.
