Across
- 4. at an angle of 90 degrees to a given line, plane, or surface
- 5. two angles that have the same vortex and a side in common
- 7. not lying on the same common plane
- 8. Three or more points in a linear position
- 9. pairs two lines that intersect with each other at a single point to form two angles
- 13. angle at 90 degrees
- 15. a straight one-dimonsional shape that extends forever in both directions
Down
- 1. angle more than 90 degrees and less than 180 degrees
- 2. Rays 2 rays that both start from a common point
- 3. either of two angles whose sum is 180
- 6. a flat, 2 dimensional surface that extends forever
- 7. Collinear points not lying in the same straight line
- 8. lying on a common plane
- 9. Segment piece of a line with a definite length
- 10. a half infinite line
- 11. angle at 180 degrees
- 12. each of the pairs of opposite angles made by two intersecting lines
- 14. an exact position of location on a plane surface