Pi Day Crossword Puzzle

1234567891011121314
Across
  1. 2. total length around the outside of a closed figure
  2. 5. line that passes through the center of a circle
  3. 7. decimal number that cannot be written as a simple fraction
  4. 10. distance around the outside of a circle
  5. 11. month Pi Day is celebrated
  6. 12. amount of space occupied by a 3D figure
  7. 13. curved surface that looks like a ball
Down
  1. 1. branch of math that deals with, points, angles, etc...
  2. 3. distance from the center of a circle to its circumference
  3. 4. 3D figure that has two circular faces that are parallel
  4. 6. comparison of two numbers
  5. 8. did the first calculation of pi
  6. 9. closed round shape
  7. 14. ratio of the circumference of a circle to its diameter