Math crossword

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Across
  1. 5. opposite over hypotenuse (2 words)
  2. 9. an angle that measures in between 90 and 180 degrees
  3. 12. three-gon
  4. 13. something that can be proved
  5. 16. a^2+b^2=c^2 (2 words)
  6. 21. something that goes on forever in two direction
  7. 23. Three medians form this.
  8. 24. you’re able to use any rigid transformation to get this
  9. 25. Three perpendicular bisectors form this.
  10. 26. something that goes on forever in one direction
  11. 27. Sum of angles in previous answer (4 words)
  12. 28. an angle that measures exactly 360 degrees
  13. 29. you’re able to use any non-rigid transformation to get this.
  14. 30. the thing formed when two lines or planes intersect
Down
  1. 1. Two lines that don’t intersect and are not coplanar (2 words)
  2. 2. a point that is the same distance away from two figures
  3. 3. an angle that measures exactly 90 degrees
  4. 4. Three altitudes form this.
  5. 6. If not x than not y
  6. 7. If y than x
  7. 8. also this
  8. 10. an angle that measures in between 180 and 360 degrees
  9. 11. something that doesn’t need to be proved
  10. 13. a line that goes through two other lines
  11. 14. opposite over adjacent (2 words)
  12. 15. a combination of things that can be proved and things that can’t be proved to get an end result
  13. 17. an angle that measures less than 90 degrees
  14. 18. this
  15. 19. adjacent over hypotenuse (2 words)
  16. 20. if and only if
  17. 22. Three angle bisectors form this. It’s always in the triangle
  18. 23. if not y than not x