what is the measurement of the angle B. please explain.

Answer:
65
Step-by-step explanation:
Total degrees in triangle: 180
Angle 1= 50
We know that the other two angles are equal, so set it as "2x"
50 +2x= 180
2x=180
x=65
Answer:
angle b is 65
Step-by-step explanation:
it states in the description below the question that the 2 missing angles are equivalent to each other. A triangle no matter what, ALWAYS has all it's interior angles equal to 180 degrees.
180-50= 130
130÷ 2 = 65
65 degrees is your answer
if you're at all confused about anything feel free to ask :)