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