MAth

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Across
  1. 2. a turn
  2. 4. Round brackets
  3. 6. to determine position of points
  4. 10. opposite of division
  5. 12. opposite of positive
  6. 14. 4 of them
  7. 18. lines or edges meet
  8. 19. opposite of clockwise
Down
  1. 1. a flip
  2. 3. a slid
  3. 5. opposite of negative
  4. 7. separated by a point
  5. 8. figure formed by two rays
  6. 9. angle 90 degrees
  7. 11. Line or plane
  8. 13. ordered pares
  9. 15. lines passing through eachother
  10. 16. ratio
  11. 17. lines
  12. 20. 0,0