Geometry Crossword Puzzle

2. Proof Proof involving indirect reasoning.
3. A parallelogram with four right angles.
4. If "P" then "Q".
5. When three or more lines intersect at one point.
6. Perpendicular distance from the center of a figure to a side.
8. If not "P" then not "Q".
12. The point of concurrency of the angle bisectors.
13. All sides and angles are congruent in a polygon.
14. Portion of a circle's area
16. A parallelogram with four congruent sides.
17. Parallelogram with four congruent sides and angles.
19. Portion of a circumference
21. Half the diameter.
22. Quadrilateral with two consecutive congruent sides and no congruent opposite sides.
23. A quadrilateral with one pair of parallel sides and has four sides.

1. All angles in a polygon are congruent.
4. Circles which have the same centers.
7. An arc smaller than the semi circle
9. Point of concurrency for perpendicular bisectors.
10. The point where all medians meet.
11. The intersection of all altitudes.
15. All sides in a polygon are congruent.
18. Segment which measures across a circle.
19. Perpendicular segment from a vertex of a triangle to the line containing the opposite side.
20. An arc bigger than the semi circle