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Big Ideas Math Integrated I, 2016
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Big Ideas Math Integrated I, 2016 View details
4. Proving Statements about Segments and Angles
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Exercise 32 Page 475

Use color-coding to understand what is happening.

Transitive Property of Angle Congruence.

Practice makes perfect
From the first part of the statement, we know that ∠ L and ∠ M are congruent, and we also know that ∠ M and ∠ N are congruent. Since both ∠ L and ∠ N are congruent with ∠ M, we can say that ∠ L and ∠ N are congruent.

If ∠ L≅ ∠ Mand ∠ M ≅ ∠ N, then ∠ L ≅ ∠ N Since we are working with angles, this is known as the Transitive Property of Angle Congruence.

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arrow_right Communicate Your Answer p.467
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Communicate Your Answer 4 (Page 467)
arrow_right Monitoring Progress p.468-472
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arrow_right Exercises p.473-476
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