Math crossword

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Across
  1. 3. the measure of the outside of a shape
  2. 5. the horizontal axis on a coordinate plane
  3. 9. product of any number and zero is zero
  4. 11. the length of one side of a figure
  5. 12. greater than 90 degrees
  6. 13. a quantity that is not a whole number
  7. 15. A number multiplied by itself
  8. 18. range of the middle half of your data
  9. 19. a thousand
  10. 21. the average
  11. 22. the vertical axis on a coordinate plane
  12. 24. two expressions that are equal
  13. 26. the distance between two sides of a circle
  14. 27. unknown numbers
  15. 28. a way to display information
  16. 29. The space of a 2D figure
  17. 30. the longest side of a right triangle
Down
  1. 1. figure with four sides
  2. 2. The probability of two things happening together
  3. 4. chance something will happen
  4. 6. a number that has no decimal or fraction
  5. 7. the perimeter of a circle
  6. 8. less than 0
  7. 10. a whole number that is positive or negative
  8. 14. a way to display data
  9. 16. the answer to a problem
  10. 17. any whole number, integer, fraction, or decimal
  11. 20. The surface area of everything but the base and the top
  12. 23. the steepness of a line
  13. 25. difference between the maximum and minimum in data