Across
- 1. part of a line that consists of one endpoint and all the points of the line on one side of the endpoint
- 4. angle an angle whose measure is 90°
- 5. never ending
- 8. the dimensions of a shape
- 10. a point that divides a segment into two congruent segments
- 11. figures in the same plane
- 14. lines that intersect
- 16. an angle whose measure is 180°
- 17. contains infinitely many lines
- 18. points lie on the same line
- 19. the endpoint of an angle
Down
- 2. formed by two rays with the same enpoint
- 3. allows you to measure lengths of segments
- 6. lines two lines that intersect to form right angles
- 7. indicates a location and has no size
- 9. allows you to find the measure of an angle
- 12. part of a line that consists of two endpoints and all points between them
- 13. one way to measure the size of an angle
- 15. lines two lines that lie on the same plane but don't intersect
