Across
- 2. lines that meet or cross at a common point
- 5. a set of points that extends forever in opposite directions
- 6. intersecting lines that form four right angles
- 7. names a location in space
- 9. goes on forever in one direction
- 10. measures 180 degrees
- 11. a tool to measure angles
- 12. a flat surface that extends indefinitely in all directions
- 13. measures less than 90 degrees
Down
- 1. the part of a line between two endpoints
- 3. the ends of a line segment
- 4. the common endpoint of an angle
- 7. lines in the same plane that never intersect
- 8. measures more than 90 degrees, but less than 180 degrees
- 9. forms a square corner, measures 90 degrees
- 13. formed by two rays with the same endpoint