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

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Presentation transcript:

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

REVIEW: Is point B a point of tangency?

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

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

EXAMPLE:

PRACTICE:

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.

PRACTICE:

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