hetpatel82svma hetpatel82svma

11-01-2021
Mathematics

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In triangle ABC AB is equals to AB and Angle B equal to 80 find the angle A

Respuesta :

PiaDeveau PiaDeveau

16-01-2021

Answer:

∠A = 20°

Step-by-step explanation:

Given:

Line AB equal to line AC

So, we can say that;

∠B = ∠C

So

∠B = ∠C = 80°

Using angle sum rule

∠A + ∠B + ∠C = 180°

∠A + 80° + 80° = 180°

∠A = 20°

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