Across
- 4. in or near an inner area
- 5. the length of the closed curve of a circle
- 8. a straight line from the center to the perimeter of a circle
- 10. the length of a straight line through the center of a circle
- 12. the 90 degree angle between two perpendicular lines
- 13. angle an angle between 90 and 180 degrees
- 16. an area that is in the middle of some larger area
- 19. a three-sided regular polygon
- 20. a specific identifiable position ina continuum or series
Down
- 1. angle less then 90 degrees
- 2. a continuous portion of a circle
- 3. a shape with a circular base and side tapering to a point
- 5. an equal importance, rank, or degree
- 6. a surface generated by rotating a line around a fixed line
- 7. a point equidstant from the ends of a line or the extremities of a figure
- 9. triangle a traingla with two equal sides
- 11. written on or in a surface
- 14. a triangle whose intinteriorgle are all acute
- 15. the space between two lines or plane that intersect
- 17. a plain curve with every point from every center
- 18. a line enclosing a plane area