1. 
How can you identify a diameter when you see one? 

2. 
Can any chord of a circle ever equal the radius? 

3. 
Diameter _{} is parallel to chord _{}. If the measure of arc BQ is twice of that of arc PQ, find the measure of angle ABP.


4. 
The radius of circle O is 7 cm. Points P, Q, and R are points of tangency. What is the area, to the nearest hundredth of a square centimeter, of the gray part?


5. 
How many common tangents can be drawn to the two circles?


6. 
Given: _{}_{}_{}, _{}_{}_{}, _{}_{}_{}, B is the midpoint of _{}. Prove: _{}_{}_{}


7. 
Describe the three possible arcs that could be found on a circle. 

8. 
How are circles defined and named? 


10. 
What is an inscribed polygon? 
