Across
- 4. Any real number that cannot be expressed as a ratio
- 7. Creater of his prinicple that explains displacement
- 8. The distance between the edge of a circle and the centre
- 10. The name of the people residing from this northern African nation
Down
- 1. A round shape that has no sides
- 2. The distance around a circle
- 3. The distance between one point on the edge of a circle and the opposite point
- 5. Also refered to as the "Father of Geometry"
- 6. Rulers of kingdoms
- 9. Famous german scientist
- 11. The name of the people residing from this mediterranian nation
- 12. What this puzzle is about