Across
- 4. interior angles-two angles inside the parallel lines that are on opposite sides of the transversal
- 8. angle-a pair of angles that have the same relative position at each intersection where the transversal crosses the other two
- 9. the common endpoint of the rays forming the angle
- 10. straight path that continues infinitely in both directions
- 13. angle-an angle that measures 90°
- 14. lines-lines that cross at one point
- 16. angle-two angles whose measures have a sum of 180°
- 19. lines-lines in the same plane that do not intersect
- 20. segment-a line with definite endpoints
Down
- 1. part of a line starting at a particular point and extending infinitely in one direction
- 2. angle-an angle that measures 180°
- 3. angle- an angle that has the same measure as another angle
- 5. a line that intersects two or more other lines at different points
- 6. angle-two angles whose measure have a sum of 90°
- 7. angle-an angle that measures less than 90°
- 11. angle-an angle that measure greater than 90°, but less than 180°
- 12. angles- two nonadjacent angles formed when two lines intersect. The angles in a vertical angle pair are congruent.
- 15. lines-lines that intersect to form a 90° angle
- 17. angles-angles that have a common side but no interior points in common
- 18. exterior angles-two angles outside of the parallel lines that are on opposite sides of the transversal