Across
- 4. A parallelogram with four congruent sides and four right angles
- 6. Segments
- 8. A polygon is this if all its sides are congruent
- 9. The parallel sides of a polygon
- 11. This is a segment on a polygon that joings two nonconsecutive vertices
- 14. A trapezoid where each pair of base angles in congruent
- 15. A plane figure that meets the following conditions: It is formed by three or more segments such that no two sides with a common endpoint are collinear, and each side intersects exactly two other sides, one at each endpoint
- 16. Another name for convex
- 17. A polygon is this if it is equilateral and equilangular
- 18. Each endpoint of a side
- 19. A parallelogram with four congruent sides
Down
- 1. The nonparallel sides of a polygon
- 2. a quadrilateal with at least one pair of parallel sides
- 3. A parallelogram with four right angles
- 5. A polygon is this if all of its interior angles are congruent
- 7. The angles on a base
- 10. A quadrilateral with both pairs of opposite sides parallel
- 12. A polygon is this if it is not convex
- 13. A polygon is this if no line that contains a side of the polygon contains a point in the interior of the polygon
