TSWBAT identify segments and rays and recognize parallel lines'

1
Section 1.3

• TSWBAT identify segments and rays and recognize
  parallel lines.

2
Definition

• Segment- part of a line consisting of two
  endpoints and all points between them.
• (Named by the endpoints!)

3
Definition

• Ray part of a line consisting of one endpoint
  and all the points of the line on one side of the
  endpoint.
• (Named by 2 points, first the endpoint then a
  point in the direction it is extending)

4
Definition

• Opposite Rays two collinear rays with the same
  endpoint. (Always form a line)

5
Examples (p19 5-7)
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Definitions Parallel vs. Skew

• Parallel Lines Coplanar lines that do not
  intersect.
• Skew Lines NONCoplanar lines (that do not
  intersect and are not parallel)

Example picture on page 20
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Definition

• Parallel Planes planes that do not intersect

Example picture on page 20
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Examples (p20 25 32)
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Examples (p19 17 20)
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Exercises

• P19-21 1-57
• P22 58-86