Find the measure of angle a.
45°
50°
85
75°
![Find the measure of angle a 45 50 85 75 class=](https://us-static.z-dn.net/files/d87/22187cf84808e7f225ae86ec446dc6c0.png)
Answer:
a = 20°
Step-by-step explanation:
The sum of the interior angles of a triangle = 180°
85° + 75° + a = 180°
160° + a = 180°
a = 180° - 160°
a = 20°
Hope this helps