Hello bbear123,
This is not really a homework service. If you could give us a step-by-step worked attempt at a solution (even if it is wrong), we would have a starting point to help you. The effort to post the problem is insufficient to help us know what assistance you need. There are many techniques in mathematics that can be used to solve this problem, but without seeing your attempt, we have no idea how to start in a way that will be meaningful to you.
Look at this webpage.
You are looking for the sum of two sector areas; small sector area plus the large sector area.
You are allowed to help in whatever way you feel as appropriate. However it is the (tacit) agreement of most of us that regularly help other members that it is far better to lead a student instead of simply supplying answers. Besides, most students here are asking about homework... and we have a strict policy about not simply giving out answers in that case. It's a fine line to walk on.
-Dan