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# Segments, Rays, Parallell Lines and Planes - PowerPoint PPT Presentation

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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## PowerPoint Slideshow about ' Segments, Rays, Parallell Lines and Planes' - xanthe

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### Segments, Rays, Parallell Lines and Planes

1-3

• 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.

• Opposite rays- Two collinear rays with the same endpoint. Opposite rays always form a line.

• Parallel lines- two coplanar lines that do not intersect.

• Skew lines- non coplanar lines which do not intersect.

• Parallel planes- planes that never intersect

• Pg 19 #5-7, 14-31, 55