Across
- 2. lines that are noncoplanar and never intersect
- 4. an angle that measures more than 90 degrees
- 9. flat surface made up of at least three points, extends indefinitely in all directions
- 11. lines that are coplanar and never intersect
- 12. two lines that intersect at a right angle
- 13. a line that intersects a segment at its midpoint
- 15. points that do not lie on the same line
- 16. an angle that measures 90 degrees
- 17. series of points with no thickness or width that extends in two directions indefinitely
- 19. 2 angles that add up to 90 degrees
- 20. part of a line that enxtends indeinitely in one direction
Down
- 1. part of a line with two endpoints
- 3. points that are not on the same plane
- 5. 2 angles that add up to 180 degrees
- 6. points that are on the same plane
- 7. 2 rays that share the same endpoint and form a line
- 8. angles that are directly across from each other on intersecting lines that are equal
- 10. an angle that measures less than 90 degrees
- 14. points that lie on the same line
- 18. a location with no size or shape
