Question

Find mBAC in circle O

Answer 1

what do you think?

Answer 2

keep in mind that the sum of all internal angles of BAC is 180 degrees

Answer 3

Hint: Angle BAC is called an inscribed angle whose measure is one-half its intercepted arc. The intercepted arc in this problem is BC.

Hint #2: Angle BOC is supllement to angle BOA, that is, their sum is 180 degrees as they lie on a straight line. So you can conclude that angle BOC = 95 degrees and angle BOC is called a central angle whose measure is equal to its intercepted arc, BC.

Now, I gave you two solid hints which if you put together will give you what you are looking for.

Answer 4

Thank you!