Geometry

3. ,a quadrilateral with exactly two congruent sides
6. ,A closed plane figure made up of line segments
12. ,the statement formed by both exchanging and negating the hypothesis and conclusion of a conditional statement
15. ,example that proves that a conjecture or statement is false
16. ,a style of proof that uses boxes and arrows to show the structure of the proof
17. ,the part of a conditional statement following the word then
19. ,a statement that has been proven
22. ,a polygon that is both equilateral and equiangular
23. ,a statement that describes a mathmatical object and can be written as a true bioconditional statement
25. ,A quadrilateral with exactly one pair of parallel sides

1. ,The part of a conditional statement following the word IF
2. ,a polygon in which no diagonal contains points in the exterior of the polygon
4. ,the statement is formed by exchanging the hypothesis and conclusion for a conditional statement
5. ,a four-sided polygon
7. ,a three-sided polygon
8. ,a quadrilateral with four right angles
9. ,an argument that uses logic to show that a conclusion is true
10. ,a quadrilateral with four right angles and four congruent sides
11. ,one of the segments that form a polygon
13. ,p is "not p" written as ~p
14. ,a statement that is believed to be true
18. ,A parallelogram with four congruent sides
20. ,A quadrilateral with two pairs of parallel sides
21. polygon,a polygon in which no diagonal contains points in the exterior of the polygon
24. ,the statement formed by negating both the hypothesis and conclusion of a conditional statement