Across
- 4. a statement accepted to be true without proof
- 5. points on the same line
- 8. Proof proof made up of a series of algebraic statements
- 11. two angles whose measures add to 90 degrees
- 14. part of a line with one endpoint and extends indefinitely in one direction
- 15. a statement that can be proven
- 16. a sentence that is either true or false
- 17. an angle less than 90 degrees
- 18. Angles two angles that are coplanar and have a common vertex, side, and interior points
- 20. Bisector ray in the interior of an angle that divides the angle into two congruent angles
- 22. a location, had no dimension
- 23. points that lie on the same plane
Down
- 1. Lines coplanar lines that never intersect
- 2. an angle that measures greater than 90 degrees
- 3. two angles whose measures add to 180 degrees
- 6. the point halfway between the two endpoints
- 7. a logical argument in which each statement you make is supported by a statement that is accepted as true
- 9. flat surface
- 10. an angle exactly 90 degrees
- 12. lines, segments, or rays that intersect to form right angles
- 13. points that do not lie on the same plane
- 16. Bisector a segment, line, or plane that intersects a segment at it's midpoint
- 19. set of all points
- 21. made up of no points