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Honors Geometry: Section 3.3 part 2 Parallel Lines

Honors Geometry: Section 3.3 part 2 Parallel Lines. Two lines are parallel iff they are coplanar and do not intersect. To indicate that is parallel to we write _______ Arrowheads are use to indicate parallel lines in a figure.

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Honors Geometry: Section 3.3 part 2 Parallel Lines

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  1. Honors Geometry: Section 3.3 part 2Parallel Lines

  2. Two lines are paralleliffthey are coplanar and do not intersect.To indicate that is parallel to we write _______Arrowheads are use toindicate parallel lines in a figure.

  3. Noncoplanar lines which do not intersect are called skew.

  4. Postulate 3.3.2 Corresponding Angles Postulate (CAP)If two parallel lines are cut by a transversal, then corresponding angles are congruent.

  5. Theorem 3.3.3 Alternate Interior Angles Theorem (AIAT)If two parallel lines are cut by a transversal, then alternate interior angles are congruent.

  6. 1) 1) Given )

  7. Theorem 3.3.4 Alternate Exterior Angles Theorem (AEAT)If two parallel lines are cut by a transversal, then alternate exterior angles are congruent.

  8. Theorem 3.3.5 Same-Side Interior Angles Theorem (SSIAT)If two parallel lines are cut by a transversal, then same-side interior angles are supplementary.

  9. 1. 1. Given ) ) ) )

  10. Examples: Find the value of the variable in each problem.

  11. Examples: Find the value of the variable in each problem.

  12. Examples: Find the value of the variable in each problem.

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