2. Arcs & Angles of Circles

3. an angle whose vertex is the center of a circle
Central Angle
an angle whose vertex is the center of a circle

4. an unbroken part of a circle consisting of two endpoints
Arc
an unbroken part of a circle consisting of two endpoints

6. Adjacent Arcs
arcs of the same circle that intersect at exactly one point. RS and ST are adjacent arcs.

8. Find each measure.
mJKL

9. Find each measure.
mLJN

10. Congruent Arcs In the figure ST  UV.
two arcs, in the same circle or two congruent circles, that have the same measure.
In the figure ST  UV.

12. TV  WS. Find mWS.

13. C  J, and mGCD  mNJM. Find NM.

14. C  J, and mGCD  mNJM. Find NM.

15. PT bisects RPS. Find RT.

16. Find each measure.
A  B, and CD  EF. Find mCD.

18. Find NP.

19. Find each measure.
1. NGH
2. HL