Geometry Vocabulary

3. An angle with measure greater than 180 degrees
4. A polygon with four sides
6. A polygon with ten sides
7. A polygon with seven sides
8. The common endpoint of two rays that form an angle
9. Lines that are not coplanar and do not intersect
10. A location in space with no dimensions
11. Any part of the circumference of a circle
13. A segment whose endpoints are on the circle
14. A polygon with all sides and angles congruent
15. A straight set of points that extends infinitely in both directions
17. An angle with measure less than 90 degrees
18. Part of a line that begins at one endpoint and extends infinitely in one direction
19. A segment from the center of a circle to a point on the circle

1. An angle with measure greater than 90 but less than 180 degrees
2. Lines in the same plane that never intersect
5. Two angles whose measures add to 90 degrees
10. Lines that intersect to form right angles
12. The set of all points in a plane that are the same distance from a center
13. Points that lie on the same line
16. A flat surface that extends infinitely in all directions