Question

In ∆, AB = AC, ∠B = 40°, then ∠C is equal to

Answer 1

If AB=AC

Then Two sides are congruent

which means given triangle is an isocseles

triangle

In isosceles triangle with two sides two angles also are congruent.

i.e. if AB=AC

Therefore, angle B = angle C

angle C = 40°

Answer 2

Answer:

c =100

Step-by-step explanation:

B=A

B=A=40

A+B+C=180

40+40+c=180

c=180-80

c=100