Answer:
I think D sorry If I am wrong
Step-by-step explanation:
x = 50°
Since 2 sides of the triangle are congruent, then the triangle is isosceles.
Then the 2 base angles are congruent, thus
x = [tex]\frac{180-80}{2}[/tex] = [tex]\frac{100}{2}[/tex] = 50°
