Question

If in a triangle ABC, AB AC and B=50", Find measure of LA​

Answer 1

Answer:

A = 80 degree

Step-by-step explanation:

AB=AC (given)

Angle B = Angle C = 50 degree

(INEQUALITY angle opposite to equal sides are equal)

In triangle ABC,

angle A + Angle B + angle C = 180 degree

(Angle sum property of a triangle)

or, A + 50 + 50 = 180

or, A = 180-100

or, A= 80 degree

Answer 2

Step-by-step explanation:

80 degree

A = 50+30= 80

80 degree