Question

In this diagram, AC and AB are tangent to O. The measure of BDC is 318 and the measure of BC is 42. What is the measure of 13 years ago

Answer 1

I did the same thing as last and got <CAB = 138, would that be right?

Answer 2

This is the theorem you need:

Read it, look at the diagram, and write an equation to solve for your angle.

Answer 3

1/2(318-42)
1/2(276)
138

Answer 4

So it's correct?

Answer 5

I got 138 also. So, yes, your answer is correct.

Answer 6

Thanks!