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8 Cards in this Set
- Front
- Back
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parallel lines
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lines in the same plane that never intersect.
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transversal
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a ray or segment that intersects two or more co planer lines, rays, or segments, each at a different point.
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what happens when a pair of parallel lines are cut by a transversal?
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8 angles are formed
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corresponding angles postulate
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if two line cut by a transversal are parallel, then the corresponding angles are congruent
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alternate interior angles theorem
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if two line cut by a transversal are parallel, then same side interior angles are supplementary
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same side exterior angles theorem
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if two line cut by a transversal are parallel, then same side exterior angles are supplementary
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alternate exterior angles theorem
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if two line cut by a transversal are parallel, then the alternate exterior angles are congruent
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alternate interior angles theorem
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if two line cut by a transversal are parallel, then the alternate interior angles are congruent
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