Answer:
180
Step-by-step explanation:
That's the answer.
.
I don't get what your asking.
Short answer: 60°
Explanation: All inner angle of a triangle add up to 180° so 180° - 60° - 60° = 60°
Subtracting the 2 already given angels must be subtracted from 180° to know the final angle
First divide by 4 to get x^2=9. Then take the square root of both sides. x=3 and x = -3.