9.8 - Copy - 9-8 Transversals to Many Parallel Lines A)...

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Unformatted text preview: 9-8 Transversals to Many Parallel Lines A) Intercept a. If a transversal intersects two lines L1andL2 in points A and B, then we say that L1 andL2 intercept the segment the transversal. i. AB on B) Theorem 9-29 a. If three parallel lines intercept congruent segments on one transversal, then they intercept congruent segments on any other transversal i. Proof: What do we know about quadrilateral AGED and quadrilateral GHFE? So what do we know about AG and DE? How about GH and EF? Therefore DE = EF b/c of C) Theorem 9-30 a. If three parallel lines intercept congruent segments on one transversal, then they intercept congruent segments on any other transversal i. (This is different from theorem 9-29 in that the transversals do not need to be parallel) ii. b. Proof: (Prove DE = EF) If T1 || T3 then what do we know? Do we know any congruent angles? So what two triangles are congruent? What does CPCTC tell us? D) Corollary 9-30.1 a. If three or more parallel lines intercept congruent segments on one transversal, then they intercept congruent segments on any other transversal i. (This is different from 9-30 b/c it is allowing us to use more than three parallel lines at once) ii. ...
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This note was uploaded on 05/16/2011 for the course ALGEBRA 098 taught by Professor Johnson during the Spring '09 term at Grand Valley State University.

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9.8 - Copy - 9-8 Transversals to Many Parallel Lines A)...

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