Question

In ∆ABC, BC = AB and ∠B = 80°. Then ∠A is equal to:​

Answer 1

Answer:

measure of angle is 50

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Answer 2

Answer:

50°

Step-by-step explanation:

Since BC = AB, angle A = angle C

angle B = 80°

In triangle ABC,

angle A + angle B + angle C = 180°

2 angle A + 80° = 180°

2 angle A = 180° - 80°

angle A = 100/2

angle A = 50°