Question

8. In A ABC, BC=AB and B-80°, then find / A.
a) 40 b) 50
d) 80
c) 60​

Answer 1

Answer:

Step-by-step explanation:

BC=AB

⇒∠A=∠C (As angles opposite to equal side are equal)

let thte angles be x each.

Now by angle sum property

∠A+∠B+∠C=180

 

⇒x+80+x=180    

⇒2x =180 −80  

⇒2x=100  

⇒x=50  

∴∠A=50  

Answer 2

Step-by-step explanation:

I hope this and is helpful for you .