Question 7
Exercise 22. Given that $\angle A+\angle B+\angle C+\angle D+\angle E=160^\circ$, find the sum of 5 shaded angles.
**Editorial input convention:** Use the simple concave star boundary shown. Each shaded angle is the smaller exterior angle at an inward notch, not its reflex interior angle. Enter their sum in degrees.
**Editorial input convention:** Use the simple concave star boundary shown. Each shaded angle is the smaller exterior angle at an inward notch, not its reflex interior angle. Enter their sum in degrees.