Across
- 2. The tapered, sharpened end of a tool
- 3. an angle of 180 degrees
- 4. the space between two intersecting lines
- 7. at an angle of 90° to a given lines
- 11. a portion cut off by a line
- 12. lines that don't intersect
- 13. a tools that gives a certain position of a point or line
- 15. lines that cross at certain points
Down
- 1. an angle of 90 degrees
- 5. a one dimensional object with length but no width
- 6. the exact middle point
- 7. an instrument for measuring angles
- 8. any of a set of straight lines passing through one point
- 9. a unit of measurement of angles
- 10. the highest point, the top or apex
- 14. a flat surface on which a straight line joining