Answer:
90 but since its a triangle but im
pretty sure you have to divide by 2 so 45 i think
10.5
Step-by-step explanation:
10.5 is greater than 10 but also less than 11.
x=28°
2x+3x-10+50=180
5x+40=180
5x=180-40
5x=140
x=140/5
8 fits the equation
hope this helps