Question

In A ABC, BC=AC if C=40 then B is​

Answer 1

answer

b = 100°

Step-by-step explanation:

given = ∆ ABC ,. BC = AC

C = 40°

to find = B =?

solution:

AC = BC and C = 40 °

therefore, since angle opposite to equal sides are equal

A=40°

and by angle sum property of triangle

a+b+c= 180°

therefore B = 100°