Geometry Crossword

3. A quadrilateral with four right angles.
5. Lines that are not coplanar.
7. Two angles in a plane that have a common vertex and a common side but no common interior points.
9. A figure formed by two rays that have the same endpoint.
11. A segment joining two non-consecutive vertices of a polygon.
12. A 5-sided polygon.
13. A 4-sided polygon.
15. A quadrilateral with four right angles and four congruent sides.
16. A chord that contains the center of a circle.
18. The figure formed by three segments joining three non-collinear points.
19. A statement that is accepted without proof.

1. An 8-sided polygon.
2. A 10-sided polygon.
3. A quadrilateral with four congruent sides.
4. Two lines that intersect to form right angles.
6. The perpendicular segment from a vertex to the line containing the opposite side.
8. The set of points in a plane that are a given distance from a given point in the plane.
10. The set of all points.
14. A statement that can be proved.
17. An angle with measure between 0 and 90.