Find the value of x in the triangle shown below

Answer:
x = 50
Step-by-step explanation:
Since the 2 legs are congruent, both 7, then the triangle is isosceles and the 2 base angles are congruent, then
x = [tex]\frac{180-80}{2}[/tex] = [tex]\frac{100}{2}[/tex] = 50