Geometry Crossword puzzle

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Across
  1. 4. a figure with 2 rays with a common endpoint
  2. 6. the real number the responds to a point
  3. 8. a line with one end point that goes on forever
  4. 9. angle that is 180 degrees
  5. 11. a word that describes points on the same plane
  6. 12. two angles that equal 90 degrees
  7. 16. Term/ terms with no formal definition
  8. 17. endpoint of an angle
  9. 19. angle greater than 90 degrees
Down
  1. 1. something that cuts the segment in half
  2. 2. the point that divides a segment in to two different segments
  3. 3. figure of set points in common with another
  4. 5. the absolute vale of the length between 2 points
  5. 7. a rule accepted without proof
  6. 10. angles two angles that equal 180 degrees
  7. 12. a word that describes points on the same line
  8. 13. angle less than 90 degrees
  9. 14. a line with end points
  10. 15. a type of pair of angles that share a common vertex and common side
  11. 18. angle exactly 90 degrees