Across
- 4. An angle whose measure is greater than 90º but less than 180º.
- 7. Lines that have exactly one point in common.
- 9. A flat surface that extends forever.
- 13. A part of a line that starts at one endpoint and extends forever.
- 14. A straight path that extends without end in opposite directions.
- 17. A triangle with no congruent sides.
- 19. A triangle containing a right angle.
- 20. A figure formed by two rays with a common endpoint called the vertex.
- 21. An exact location.
- 23. A part of a line between two endpoints.
- 24. Lines in a plane that do not intersect.
- 25. An angle that measures 90º.
Down
- 1. A triangle with at least two congruent sides.
- 2. Two angles whose measures have a sum of 180º.
- 3. A triangle with three congruent sides.
- 5. On an angle or polygon, the point where two sides intersect.
- 6. Two angles whose measures add to 90º.
- 8. Lines that lie in different planes that are neither parallel nor intersecting.
- 10. Angles in the same plane that have a common vertex and a common side.
- 11. An angle that measures less than 90º.
- 12. An angle that measures 180º.
- 15. A triangle containing one obtuse angle.
- 16. A triangle with all angles measuring less than 90º.
- 18. Angles with equal measures.
- 22. A pair of opposite congruent angles formed by intersecting lines.