Vocabulary pop quiz #2

1234567891011121314151617181920
Across
  1. 3. the lines containing the sides will not pass through the interior of the polygon
  2. 5. two angles whose sum is 180 degrees
  3. 7. the sum of the sides of a polygon
  4. 8. the angles of the polygon are congruent
  5. 10. the distance around a circle
  6. 13. a ray that divides an angle into two congruent angles
  7. 14. two angles whoe sum is 90 degrees
  8. 16. a polygon that is equilateral and equiangular
  9. 17. an angle whose measure is more than 90 degrees but less than 180
  10. 18. two adjacent angles with noncommon sides that are opposite rays
  11. 20. two lines that form four right angles
Down
  1. 1. two noncollinear rays that share a common point called vertex
  2. 2. an angle whose measure is exactly 90 degrees
  3. 4. the sides of the polygon are congruent
  4. 6. two angles that have a common vertex but no common interior points
  5. 9. a closed figure formed by three or more segments
  6. 10. angles that have the same measure
  7. 11. a part of a line with an initial point that extends in one direction
  8. 12. the lines containing the sides will pass through the interior of the polygon
  9. 15. an angle whose measure is more than 0 degrees but less than 90 degrees
  10. 19. the number of square units needed to cover a surface