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1.3Segments, Rays, Parallel Lines and Planes

Vocabulary

- Segment
- Ray
- Opposite Rays
- Parallel Lines
- Skew Lines

Segment

- Part of a line with two endpoints.
- Named by its endpoints.

Ray

- Part of a line with one endpoint.
- Named by its endpoint and another point on the

ray.

Opposite Rays

- Two collinear rays with one endpoint.
- (A line)

Parallel Lines

- Coplanar lines that do not intersect.

Skew Lines

- Lines that are not
- Coplanar, Parallel
- and do not intersect.

- Name the front of the figure.
- Name the top of the figure.
- Name two skew line segments.
- Name four coplanar points.
- Name four non coplanar points.

Assume lines and planes that look parallel are

parallel

Assume lines and planes that look parallel are

parallel

- Plane ABG in parallel to what plane?
- Are points A, B and F collinear? Coplanar?
- Are points D, E and A Coplanar?
- Are points K, C, G and E Coplanar?
- Name the intersection of plane JBK and JHD.

Assume lines and planes that look parallel are

parallel

Homework

- 1.3 Pg 19-22 (1-4 all, 6-34 even, 38-46 even,

71-84 all)