Question

In  ABC, BC = AB and  ABC = 100
°, find  BAC.​

Answer 1

Answer:

The answer is 40 degrees

Step-by-step explanation:

As per your question, ABC is a triangle where AB=BC.

And Angle ABC = 100 degrees.

We know that, equal sides intend equal angles.

So, angle BAC= angle BCA.

WE ALSO KNOW THAT, BAC+BCA+ABC=180 degree( angle sum property of a triangle)

2BAC+100=180

2BAC=180-100

BAC=80/2

Therefore, angle BAC=40 degree

Hope it helps