Answer:
If the angle of vertex of isosceles triangle is 50° then the angle of base is 80°
Explanation -
Sum of all angles of a triangle is 180°
As we know in an isosceles triangle 2 sides and equal its opposite angles are also equal .
50 + 50 + X = 180
100 + X = 180
X = 180 - 100
X = 80°
