Across
- 1. A quadrilateral that can be inscribed in a circle
- 3. A quadrilateral with two pairs of adjacent equal sides
- 5. A line segment joining two non-adjacent vertices
- 6. A quadrilateral with four equal sides and four right angles
- 8. Sides of a parallelogram that are equal and parallel
- 9. The corner point of a quadrilateral
- 12. A quadrilateral with four right angles
- 14. Lines that never meet
- 15. A four-sided polygon
- 16. A quadrilateral with exactly one pair of parallel sides
- 19. A quadrilateral with all interior angles less than 180°
- 20. Two angles that add up to 180°
- 21. A parallelogram with four equal sides
- 22. Another name for a quadrilateral
- 23. A quadrilateral with one interior angle greater than 180°
Down
- 2. A trapezoid with equal non-parallel sides
- 4. Where the diagonals of a parallelogram meet
- 7. The side of a trapezoid on which it “stands”
- 8. A slanted parallelogram that is not a rectangle or rhombus
- 10. The non-parallel side of a trapezoid
- 11. A quadrilateral with both pairs of opposite sides parallel
- 13. The total of the interior angles of a quadrilateral
- 14. The distance around a quadrilateral
- 17. Angles in a parallelogram that are equal
- 18. A quadrilateral with no parallel sides