Pi Day

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Across
  1. 1. The first digit of pi
  2. 5. Pi is this type of number (not rational)
  3. 6. All points are the same ___ from the center
  4. 7. The month Pi Day is in
  5. 9. Pi day is on March ___
  6. 10. Circle in 3D
  7. 13. Intersection of a plane and a cone (___ section)
Down
  1. 2. Half of the diameter
  2. 3. The distantce around a circle
  3. 4. Circumference divided by pi
  4. 8. Length x Width
  5. 11. Today is.. (two words)
  6. 12. Circumference divided by the diameter