Across
- 3. The chord passing through the center of the circle.
- 5. base of natural logarithm
- 6. great mathematician whose theorem is used in the right triangles
- 8. Theorem about calculation of quadratic equations
- 10. the half of diameter is...
- 11. if number divided by zero, it would be...
Down
- 1. any two parallel lines are...
- 2. if zero divided by zero, it would be...
- 4. In childhood he calculated an amount from 1 to 100
- 7. piece of wood
- 9. number which starts at 3.14