Math crossword puzzle

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Across
  1. 2. has 2 pair of equal length adjacent sides
  2. 5. has exactly 4 sides
  3. 6. a quadrilateral that has 4 sides that have the same length
  4. 8. lines 2 lines that don't intersect
  5. 9. angle an angle less 90 degrees
  6. 13. a conclusion that appears to be true
  7. 14. 5 sided polygon
  8. 16. angle a angle that is 180 degrees
  9. 17. angle and angle that is bigger than 90 and less than 180
  10. 18. "the middle"
  11. 20. taken to be true with evidence that its true
  12. 22. 9 sided polygon
  13. 23. a line that has 2 end points
  14. 24. two rays meeting at a common end point
Down
  1. 1. the perimeter of a circle
  2. 3. triangle all 3 sides of the triangle are the same length
  3. 4. lines that pass through 2 lines in the same plane
  4. 7. the middle point of a line segment
  5. 8. taken to be true without proof
  6. 10. a 8 sided polygon
  7. 11. polygon a polygon that has equal angles and sides
  8. 12. triangle 2 sides of the triangle are the same length
  9. 15. have the same shape and size
  10. 16. triangle has the unequal sides
  11. 19. has 4 equal sides and 4 equal angles
  12. 21. formula a formula used to find the distance between 2 points