crossword

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Across
  1. 3. discount
  2. 6. irrational
  3. 8. geometrical
  4. 14. substitute
  5. 16. root
  6. 17. expression
  7. 18. guess
  8. 19. construct
  9. 21. cost
  10. 22. apply
  11. 23. symmetry
  12. 24. solve
Down
  1. 1. rate
  2. 2. diagonal
  3. 4. variable
  4. 5. equilateral
  5. 7. listing
  6. 9. commission
  7. 10. converse
  8. 11. simple
  9. 12. hypotenuse
  10. 13. bisect
  11. 15. acute
  12. 19. compound
  13. 20. polygon