Vocabulary pop quiz #2

3. the lines containing the sides will not pass through the interior of the polygon
5. two angles whose sum is 180 degrees
7. the sum of the sides of a polygon
8. the angles of the polygon are congruent
10. the distance around a circle
13. a ray that divides an angle into two congruent angles
14. two angles whoe sum is 90 degrees
16. a polygon that is equilateral and equiangular
17. an angle whose measure is more than 90 degrees but less than 180
18. two adjacent angles with noncommon sides that are opposite rays
20. two lines that form four right angles

1. two noncollinear rays that share a common point called vertex
2. an angle whose measure is exactly 90 degrees
4. the sides of the polygon are congruent
6. two angles that have a common vertex but no common interior points
9. a closed figure formed by three or more segments
10. angles that have the same measure
11. a part of a line with an initial point that extends in one direction
12. the lines containing the sides will pass through the interior of the polygon
15. an angle whose measure is more than 0 degrees but less than 90 degrees
19. the number of square units needed to cover a surface