Across
- 3. An angle that is greater than 90 degrees
- 5. An angle that is exactly 90 degrees
- 7. Points that lie on the same plane
- 10. Lines in the same plane that never intersect
- 11. An exact location
- 12. A part of a line that has two endpoints
- 13. Two lines that intersect to form right angles
- 15. The point where two objects cross
- 17. The set of all points that extend infinitely in opposite directions
- 18. An angle that is less than 90 degrees
Down
- 1. A point that cuts a segment in half
- 2. Two angles that add up to 90 degrees
- 4. The last points on a segment
- 6. To cut something directly in half
- 7. Points that lie on the same line
- 8. The part of a line that extends from one endpoint infinitely in one direction
- 9. Two angles that add up to 180 degrees
- 14. A flat surface that extends infinitely in all directions. A plane contains at least 3 noncollinear points
- 16. Is formed by two rays with the same endpoint