definitions

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Across
  1. 2. the average
  2. 5. always a positive number
  3. 7. used for making mathematical calculations
  4. 8. real number on the base ten standard numbering system
  5. 9. bottom number of a fraction
  6. 12. a flat surface
  7. 13. longest side of a right angled triangle
  8. 17. substitutes letters for numbers
  9. 19. having two sides equal in length
  10. 22. abbreviated by tan
  11. 24. marked at regular intervals
  12. 26. specifies a location
  13. 27. round body whose surface is at all points equidistant from the center
  14. 28. one of the lines bounding a geometric figure
  15. 29. a straight infinite path
Down
  1. 1. used in counting or noting a total
  2. 3. the answer to the problem itself
  3. 4. ordered pairs that state a location
  4. 6. used mostly for multiplication and division
  5. 7. involves derivatives and integrals
  6. 10. the systematic treatment of relationships between figures and forms
  7. 11. the repeated addition of the same number
  8. 14. used for measuring angles
  9. 15. three sided polygon
  10. 16. gives reference to the repeated multiplication required
  11. 18. divides into another number exactly
  12. 20. all three sides equal
  13. 21. slightly flattened circle
  14. 23. vertical and horizontal lines
  15. 25. a point of intersection