Circle and Polygons--Yang

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Across
  1. 8. a circle that passes through all the vertices of the polygon
  2. 9. a line from the center of a regular polygon at right angles to any of its sides
  3. 10. two circles share a point and all the points of one circle lie on the disk created by the other circle
  4. 11. the portion of a disk enclosed by two radii and an arc
  5. 13. a plane figure with twelve sides
  6. 14. a line segment whose endpoints both lie on the circle
  7. 18. the angle inside two adjacent sides of a polygon
  8. 22. a triangle that all three vertices are on the circumference of the circle
  9. 24. a plane figure with ten straight sides and angles
  10. 26. an occasion when two lines cross
  11. 27. the enclosing boundary of a circle
  12. 28. a line that intersects the circle in two different points
  13. 29. a plane figure with six straight sides and angles
  14. 30. a line that intersects the circle in exactly one point
  15. 31. the intersection point of all the angle bisectors of the regular polygon
  16. 32. the intersection point of the midlines of a triangle
  17. 33. a plane figure with three straight sides and three angles
Down
  1. 1. A triangle with all three sides of equal length
  2. 2. A triangle with two equal sides.
  3. 3. the set of points which are an equal distance to a fixed point
  4. 4. two circles share a point and no point of one circle is on the disk created by the other circle
  5. 5. divide (a line, angle, shape, etc.) into two equal parts
  6. 6. at an angle of 90° to a given line, plane, or surface
  7. 7. a plane figure with five straight sides and five angles
  8. 12. the angle between a side of a polygon and an extended adjacent side
  9. 15. a plane figure with eight straight sides and eight angles
  10. 16. a plane figure with four equal straight sides and four right angles
  11. 17. a plane figure with at least three straight sides and angles
  12. 19. A flat shape with four straight sides
  13. 20. the distance from the center to the circumference of a circle
  14. 21. A polygon which all angles are equal and all sides are equal
  15. 23. a plane figure with nine straight sides and nine angles
  16. 25. the distance from one point on a circle through the center to another point on the circle