Module 19: Lesson 4 Segment Relationships in Circles

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Presentation transcript:

Module 19: Lesson 4 Segment Relationships in Circles Chord-Chord Product Theorem If 2 chords intersect inside a circle, then the products of the lengths of the segments of the chords are equal. B A C AC · CE = BC · DC E See example 1 page 1043 D

Secant-Secant Product Theorem If 2 secants intersect in the exterior of a circle, then the products of the lengths of one secant segment and its external segment equals the product of the lengths of the other secant segment and its external segment. BC · AC = CE · CD A B C D E See example 3 page 1045

Secant-Tangent Product Theorem If a secant and a tangent intersect in the exterior of a circle, then the product of the lengths of one secant segment and its external segment equals the length of the tangent segment squared. A See example 4 page 1046 B C D

Homework pages 1049-1053 #’s 5-20 (all)