Pi Day Crossword

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Across
  1. 3. the ratio of a circle's circumference to its diameter
  2. 4. the best math teacher at columbia
  3. 6. holds the guiness world record for the most digits of pi memorized
  4. 8. "____ as pie"
  5. 11. a shape with no corners or line segments
  6. 12. pi is an __________ number
Down
  1. 1. greek word for "perimeter"
  2. 2. mom's _____ pie
  3. 5. the distance across a circle that passes through the middle
  4. 7. scientist born on pi day
  5. 9. mathematician credited with making the first calculation of pi
  6. 10. proportion