1. TODAY IN GEOMETRY…  Review: Properties of Tangents  Learning Target : 10.2 You will use angle measures to find arc measures.  Independent practice

3. REVIEW: Is point B a point of tangency?

4. REVIEW: How many common tangents do the following circles share? 1. 2. 3. 4. 0 COMMON TANGENTS 2 COMMON TANGENTS 1 COMMON TANGENT 3 COMMON TANGENTS

5. CENTRAL ANGLE: Angle whose vertex is the center of the circle.

7. EXAMPLE:

8. PRACTICE:

10. CONGRUENT CIRCLES: two circles are congruent if they have the same radius. CONGRUENT ARCS: two arcs are congruent if they have the same measure and they are the arcs of the same circle or congruent circles.

11. PRACTICE:

12. HOMEWORK #2: Pg. 661: 3-14, 17, 23 If finished, work on other assignments: HW #1: Pg. 655: 3-20, 24-26, 30