Across
- 7. mathematician known for his number 1729
- 8. point at which the three altitudes of a triangle intersect
- 10. ratio of the circumference of circle to its diameter
- 11. the distance around the circle
- 12. line segment from a vertex to the mid points of the opposite side
- 13. name of seven sided polygon
- 14. other name of circle graph
Down
- 1. mathematician known for his theorem on right triangle
- 2. a pyramid with five surfaces
- 3. flat surface with no thickness that extends infinitely in all directions
- 4. longest side of a right triangle
- 5. Greek mathematician often referred to as father of geometry
- 6. difference between highest value and lowest value
- 9. mathematician who invented zero
- 12. one termed polynomial