Geometry Crossword Puzzle

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Across
  1. 3. Points that lie on the same line
  2. 6. property
  3. 8. Reasoning using observed patterns
  4. 11. Showing that a conjecture is false
  5. 13. Angles that add up to 180
  6. 16. Set of numbers that determine a location
  7. 17. A line that intersects two or more lines at different points
  8. 20. something that is long and narrow
  9. 21. A plastic device used to measure angles.
  10. 25. Congruent angles formed by intersecting lines
  11. 26. A line that connects two points but goes in one direction
  12. 29. A line that intersects the segment
  13. 30. If q then p
  14. 32. Flat 2-dimensional surface
  15. 33. An educated guess based on examples
  16. 34. Two angles that have the same measure
  17. 35. Starts with "If" aka p
  18. 36. Changes the truth value
  19. 37. Starts with "then" aka q
Down
  1. 1. Angles that add up to 90
  2. 2. If not p, then not q
  3. 4. A geometric figure that has no length, width and height
  4. 5. Two lines that intersect at right angles
  5. 7. A line that has two endpoints
  6. 9. Two adjacent angles that form a line
  7. 10. If not q, then not p
  8. 12. A study of an angle
  9. 14. If p then q
  10. 15. Divides the angles opposite sides
  11. 18. If p - q is true and p is true, then q is true
  12. 19. Two points connect but go in two different directions
  13. 22. Two lines that never intersect
  14. 23. A rule with no markings on it
  15. 24. If p -q and q - r, then p - r is true
  16. 27. Between any two points a line can always be drawn
  17. 28. The average of the x and y coordinates
  18. 31. The starting point of an angle