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Segments, Rays, Parallell Lines and Planes

Segments, Rays, Parallell Lines and Planes. 1-3. Definitions. Segment- a segment is a part of a line which contains two endpoints and all of the points between. Ray- A ray is a part of a line consisting of only one endpoint, and extending infinitely in the opposite direction.

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Segments, Rays, Parallell Lines and Planes

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  1. Segments, Rays, Parallell Lines and Planes 1-3

  2. Definitions • Segment- a segment is a part of a line which contains two endpoints and all of the points between. • Ray- A ray is a part of a line consisting of only one endpoint, and extending infinitely in the opposite direction.

  3. Definitions • Opposite rays- Two collinear rays with the same endpoint. Opposite rays always form a line. • Parallel lines- two coplanar lines that do not intersect.

  4. Definitions • Skew lines- non coplanar lines which do not intersect. • Parallel planes- planes that never intersect

  5. Find a pair of parallel lines • Skew Lines: • Parallel planes: • Where does plane ABD and plane EHD intersect?

  6. Find three segments: • Find three rays: • Name the line in three ways: • Name a pair of opposite rays:

  7. Homework • Pg 19 #5-7, 14-31, 55

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