Find the size of each of the unknown angles. Help me plz.
The answer is a=b=60 degree and c=120 degree. Give me solution plz
![Find the size of each of the unknown angles Help me plz The answer is ab60 degree and c120 degree Give me solution plz class=](https://us-static.z-dn.net/files/d67/c0361779081127059edee5237f2c65a4.jpg)