Question

ABC is an isosceles ∆ and angle B=55°, Find the value of x.

Answer 1

x = 70 is the answer

Answer 2

angle B 55°
In an isosceles triangle two angles are same
so
angle a=angle b= 55°
sum of Angles in triangle is 180°
angle a+angle b+ angle c=180°
55°+55°+angle c= 180°
110°+angle c= 180°
angle C = 70°