Across
- 7. - A segment that passes through the center of a circle and has both endpoints on the circle.
- 9. Angle - An angle that measures less than 90º
- 11. - A part of a line that starts at one endpoint and extends forever.
- 12. Two angles whose measures add to 90º
- 14. - Sides that have the same length
- 15. - Lines that intersect to form right angles
- 16. - A triangle with at least two congruent sides.
- 19. - A triangle containing a right angle.
- 20. - A quadrilateral with exactly one pair of parallel sides.
Down
- 1. - Lines in a plane that do not intersect.
- 2. - A triangle with no congruent sides.
- 3. - An angle whose measure is greater than 90º but less than 180º.
- 4. - An angle that measures 90º.
- 5. - A straight path that extends without end in opposite directions.
- 6. - A pair of opposite congruent angles formed by intersecting lines.
- 8. - A parallelogram with four right angles
- 10. - A rectangle with four congruent sides.
- 13. - A part of a line between two endpoints.
- 16. - Lines that have exactly one point in common.
- 17. - A parallelogram with all sides congruent.
- 18. - A parallelogram with four right angles