Answer:
The other two angles would either be 30 and 120, or they would be 75 and 75.
Step-by-step explanation:
To find these two options we have to consider the possibilities.
1. 30 is one of the two common angles.
-In this possibility we already know that 30 is one of the other angles. This is because it is a common angle. So, to find the other, we subtract 30 and 30 from 180 to get the last possibility.
180 - 30 - 30 = 120
2. 30 is the unique angle.
-In this possibility we know that the remaining two angles are equal. To find them, subtract the first angle from 180 and then divide by two to get the other two angles.
180 - 30 = 150
150/2 = 75
