Across
- 3. one of the quarters of the plane of the Cartesian coordinate system
- 5. line that is perpendicular to radius of a circle
- 6. the distance between the centre of the circle and any point on its circumference
- 7. to divide into two equal parts
- 10. a polygon with pair of opposite sides that are parellel
- 13. longest chord of a circle
- 15. lines that dont meet
Down
- 1. the space between two intersecting lines
- 2. line that intersects parellel lines
- 4. ratio of circles circumference to its diameter
- 5. the study if triangles
- 8. a line segment that joins to sides of a circle
- 9. perimeter of a circle
- 11. the line where two surfaces meet
- 12. a polygon with all for sides equal
- 14. the region of a polygon
