Angle Relationships with Parallel Lines

Use parallel-line angle rules to find missing measures.

Lesson 2 of 53 parts Practice Flashcards

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Corresponding Angles

Objective: Use corresponding angle equality when lines are parallel.

If parallel lines are cut by a transversal, corresponding angle pairs are congruent.

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Objective: Use corresponding angle equality when lines are parallel.

If parallel lines are cut by a transversal, corresponding angle pairs are congruent.

Objective: Use alternate angle congruence when lines are parallel.

If parallel lines are cut by a transversal, alternate interior angles are congruent and alternate exterior angles are congruent.

Objective: Find a missing angle using supplementary same-side interiors.

If parallel lines are cut by a transversal, same-side interior angle measures sum to 180°.

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