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Construct Triangle When Its Base, Difference of the Other Two Sides and One Base Angle Are Given

Choose the co...

Question

Choose the correct answer from the given alternative:

In a triangle ABC, ∠A = 80° and AB = AC, then ∠B is _____________.

A. 50°

B. 60°

C. 40°

D. 70°

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Solution

In a triangle ABC, if ∠A = 80° and AB = AC, then ∠B is 50°

Since AB = AC, we get .

In a triangle ABC, we have:

Correct Option: A

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