Pi Day Crossword

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Across
  1. 3. a decimal number that can't be written as a fraction and never ends
  2. 10. did the first calculation of pi
  3. 13. a branch of mathematics that uses letters to represent numbers and that studies numbers and the operations
  4. 14. breaking a number up into an equal number of parts
  5. 15. the branch of mathematics that deals with the finding and properties of derivatives and integrals of functions
  6. 16. the total space taken up by a flat (2-D) surface or shape of an object.
  7. 18. a number which produces a specified quantity when multiplied by itself
  8. 20. the branch of mathematics concerned with the properties and relations of points, lines, surfaces, solids, and higher dimensional analogs
Down
  1. 1. the set of points in a plane that are equidistant from a given point
  2. 2. a numerical quantity that is not a whole number
  3. 4. equal in value, amount, function, meaning, etc.
  4. 5. the enclosing boundary of a curved geometric figure, especially a circle.
  5. 6. the space (usually measured in degrees) between two intersecting lines or surfaces at or close to the point where they meet.
  6. 7. a whole number greater than 1 whose only factors are 1 and itself.
  7. 8. a straight line passing from side to side through the center of a body or figure, especially a circle or sphere.
  8. 9. the process of adding a number to itself a particular number of times
  9. 11. a straight line from the center to the circumference of a circle or sphere.
  10. 12. The numeric relationship between two or more things is called
  11. 17. standing in for an unknown numerical value in an equation or an algebraic expression
  12. 19. a statement that the values of two mathematical expressions are equal (indicated by the sign =).