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Unit 1 Part 2

Segments, Rays, and Parallel Lines. Unit 1 Part 2. Segment : is part of a line that has a beginning point and an endpoint. Written notation. Unit 1 Part 2. A B. AB.

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Unit 1 Part 2

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  1. Segments, Rays, and Parallel Lines Unit 1 Part 2

  2. Segment : is part of a line that has a beginning point and an endpoint. Written notation. Unit 1 Part 2 A B AB

  3. A ray is the part of a line that has a beginning point and goes through another point without end, in that direction. Written notation. Ray A B D C CD AB

  4. Opposite rays are two collinear rays with the same beginning point. (line) Written notation. Opposite Ray B A C AB , AC

  5. Parallel lines are coplanar lines that do not intersect. Parallel lines A B C D

  6. Skew lines do not lie in the same plane, are not parallel, and do not intersect. Skew lines T A B S

  7. Parallel planes are planes that do not intersect. Parallel planes P Plane P is parallel to plane S S

  8. Examples • AB and AD ______ • AB and ST are • AB and RS are • Plane ADR and BCS • Plane RCS and ABC • Intersect at point A • Skew lines • Parallel lines • Parallel planes • Intersect along the line DC.

  9. Is CB parallel to GF ? Is plane AED parallel to plane FGH ? Are AB and HG skew lines ? Questions H B I G A C J F E D No Yes Yes

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