Module 1 Lesson 21 Triangle Proof Intro.notebook

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Lesson 21

Triangle Proof Intro

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Module 1 Lesson 21 Triangle Proof Intro.notebook

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Module 1 Lesson 21 Triangle Proof Intro.notebook

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Module 1 Lesson 21 Triangle Proof Intro.notebook

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Module 1 Lesson 21 Triangle Proof Intro.notebook

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Exterior angle of a triangle equals the sum of the two opposite interior angles

Exterior angle of a triangle equals the sum of the two opposite interior anglesExterior angle of a triangle equals the sum of the two opposite interior angles

If parallel lines are cut by a transversal, then corresponding angles are congruent

If parallel lines are cut by a transversal, then alternate exterior angles are congruent

If parallel lines are cut by a transversal, then corresponding angles are congruentIf parallel lines are cut by a transversal, then corresponding angles are congruent

If parallel lines are cut by a transversal, then alternate exterior angles are congruentIf parallel lines are cut by a transversal, then alternate exterior angles are congruent

If parallel lines are cut by a transversal, then alternate interior angles are congruent

If parallel lines are cut by a transversal, then same side interior angles are supplementary

If parallel lines are cut by a transversal, then alternate interior angles are congruentIf parallel lines are cut by a transversal, then alternate interior angles are congruent

If parallel lines are cut by a transversal, then same side interior angles are supplementaryIf parallel lines are cut by a transversal, then same side interior angles are supplementary