Across
- 4. point two lines or surfaces cross
- 6. on the same line
- 7. enclosed figure whose points lie equidistant from a defined center point
- 8. the exact middle point
- 9. having a common vertex and side
- 12. rays that extend 180 degrees from each other
- 16. to divide into two equal parts
- 17. A flat surface on which a straight line joining any two points on it would wholly lie
- 18. line that bisects
- 19. angle < 90 deg
- 20. type of angles who add up to 180 deg
- 21. a part of a line that has one end point, but extends indefinitely on one side
- 22. Space between two intersecting lines or surfaces at point where meet
- 23. part of aline with two endpoints
Down
- 1. identical in form but does not have to face same direction
- 2. angle >90 deg
- 3. collection of points that continue forever in both directions
- 5. angle = 90 deg
- 10. enclosed boundary of a curved geometric figure
- 11. type of angles who add up to 90 deg
- 13. boundary of a closed geometric figure
- 14. pair of opposite angles made by two intersecting lines
- 15. on the same plane