Question

In triangle ABC, angleA=70degree and angleB=angleC. Find angleB​

Answer 1

If angle B and C are equal, the triangle must be an isosceles triangle.

Angles in a triangle add to 180°

180°-70°=110°

110°/2=55°

Angle B= 55°

Answer 2

Answer:

sum of triangle is 180 degree

A=70 degree

Angle B=angleC

180-70=110

half of 110 is 55

so angle b=55

angle c=55