D. Find the value of the marked angles a, b, c, d, and give the reason for your answer.
55°
a
73°
b 112
![D Find The Value Of The Marked Angles A B C D And Give The Reason For Your Answer55a73b 112 class=](https://ph-static.z-dn.net/files/dce/a2dc7eaf85ba5e6052b19cbc7ccb558e.jpg)
Answer:
1. 55°, vertical angles are congruent
2. 68°, sum of supplementary angles is 180°
3. 107°, sum of supplementary angles is 180°
4. 73°, vertical angles are congruent