Pi-Day Crossword Puzzle!

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Across
  1. 3. Insect covered in circles
  2. 7. π is an _______ number
  3. 10. Circumference of the earth East-West
  4. 11. Famous scientist born on π-Day
  5. 14. Fraction equivalent of π is ___/7
  6. 15. Measurement of the outside of a circle
Down
  1. 1. Circular food with a crust served for dinner
  2. 2. Official animal of π-Day
  3. 4. A perfectly round plane figure
  4. 5. The r in the equation of circumference
  5. 6. Circular food with a crust served for dessert
  6. 8. The number of digits in π
  7. 9. π is written as a _____ letter
  8. 12. π on the Unit Circle is equal to 180 _______
  9. 13. 6th digit of π