1.

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

Answer»

ong>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


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