Question

Please help! I dont know how to solve this question!

Answer 1

The two interior angles that are not supplemantly (adjacent) to the exteroir angle add up to the exterior angle. Therefore we have:

3x+2x=150

5x=150

x=30.

Since it asked for angle BAC, therefore we have:

30 x 2 = 60.

The answer is C.

Hope this helps!