Across
- 2. has two rays with one common point
- 3. flat surface that extends indefinite all directions
- 7. pi diameter
- 9. points that are on the same line
- 10. part of the circumference of a circle
- 11. lines in the same plane that don't intersect
- 13. points at the end of a line segment
Down
- 1. same shape same size
- 4. part of a line with two endpoints
- 5. line that cut through the center of a circle
- 6. is a common point connecting an angle
- 8. goes on forever only in one direction
- 9. the set of all points equidistant from the center
- 11. has no width length or thickness a dot represents
- 12. a straight path extending in opposite ways forever