Question

B) in a ∆abc, ab = ac and ∠a = 500 find ∠b and ∠c(3)

Answer 1

Step-by-step explanation:

Given, AB=AC and ∠B=50o

We have to find ∠A

As ∠B=50o, we have ∠C=50o

Therefore, ∠A+∠B+∠C=180o

⇒50+50+∠A=180o

⇒100+∠A=180o

⇒∠A=80o