Geometry Summer Work

3. A statement containing the words “if and only if.”
6. The point that divides the segment into two congruent segments.
7. An angle with measure between 90 and 180.
8. Two points on the line and all points between them.
10. Points all on one line.
14. An angle with a measure between 0 and 90.
17. Points all in one plane.
18. An angle with measure 180.
20. A figure formed by two rays that have the same endpoint. The two rays are called the sides of the angle, and their common endpoint is the vertex.
21. An angle with measure 90.

1. Two angles whose measures have a sum of 90.
2. Two angles whose sides form two pairs of opposite rays.
4. An example used to prove that an if-then statement is false.
5. The ray that divides the angle into two congruent adjacent angles.
9. A statement written in if-then form.
11. Two angles in a plane that have a common vertex and a common side but no common interior points.
12. A line, segment, ray, or plane that intersects the segment at its midpoint.
13. Two angles whose measures have a sum of 180.
15. A statement that is accepted without proof.
16. The set of all points.
19. A statement that can be proved.