Pi Day

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Across
  1. 3. The day of the month Pi Day is celebrated, corresponding to the first three significant digits of pi.
  2. 4. The number of letters in the word "pi.
  3. 6. This famous scientist was born on Pi Day in 1879.
  4. 7. The Greek letter that represents the mathematical constant pi.
  5. 8. A dessert that shares its name with the mathematical constant celebrated on March 14th.
  6. 11. The type of number pi is, not rational, but ___.
  7. 13. The shape that is most commonly associated with pi.
Down
  1. 1. The mathematical operation you'd use with pi to find the distance around a circle.
  2. 2. Pi is approximately equal to 3.14, but these numbers go on forever without ___.
  3. 5. The first digit of pi after the decimal.
  4. 9. The month when Pi Day is celebrated. (Hint: It's the third month of the year.
  5. 10. The circumference divided by this part of the circle equals pi.
  6. 12. Pi is used to calculate the ___ and circumference of a circle.