Across
- 5. Lines that do not intersect
- 8. An angle measuring between 0º and 90º
- 9. Angles whose measures add up to 180º
- 11. Angles between two parallel lines on opposite sides of a transversal
- 12. An angle measuring exactly 90º
Down
- 1. A part of a line between two points
- 2. Lines that intersect at right angles
- 3. Angles whose measures add up to 90º
- 4. An angle measuring exactly 180º
- 6. A set of points that extends indefinitely in two opposite directions
- 7. An angle measuring between 90º and 180º
- 10. A set of points that extends indefinitely in one direction