Across
- 3. a straight line segment
- 4. passes through the center of a circle
- 5. two times pie r squared
- 10. a shape of all points
- 11. pie times r squared
- 12. a plane
Down
- 1. A straight line that intersects a curve at two or more points
- 2. the middle of a circle
- 6. the distance from the center of a circle
- 7. a straight line segment whose endpoints are on the circles circumference
- 8. the mathematical constant representing the ratio of a circle
- 9. a line or plane that touches a curved surface