Answer:
1 = 56
2 = 56
3 = 56
Step-by-step explanation:
Since they're congruent, they all have the same angle measure.
- Thus, a circle is 360 degrees
- We are given 120 degrees and 72 degrees
- Subtract 120 and 72 from 360 to find the angle measure of the side with undefined angle measures
- We have 168
- Divide 168 by 3 because there are 3 congruent angles to define
- We get 56
- Each angle is 56 degrees
