Geometry H Crossword Puzzle

2. A line that intersects two or more coplanar lines in different points.
5. Two angles whose measures have the sum 180.
7. A statement that is accepted without proof.
9. A kind of reasoning in which the conclusion is based on several past observations.
10. A triangle with all angles congruent.
12. Lines that are coplanar.
14. A line, segment, ray, or plane that intersects the segment as its mid-point.
16. A 10-sided polygon.
18. A segment whose endpoints lie on a circle.
19. A polygon that is both equiangular and equilateral.
20. Any segment perpendicular to a line containing one base from a point on the opposite base.

1. Points all in one line.
3. Two angles whose measures have the sum 90.
4. Providing statements by reasoning from accepted postulates, definitions, theorems, and given information.
6. An angle with measure 180.
8. The ray that divides the angle into two congruent adjacent angles.
11. A statement that contains the words "if and only if."
13. Circles that lie in the same plane and have the same center.
15. A segment from a vertex to the midpoint of the opposite side.
17. A quadrilateral with both pairs of opposite sides parallel.