All About Circle

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Across
  1. 2. a polygon enclosed by ten equal sides
  2. 4. a polygon enclosed by six equal sides
  3. 7. the angle made by two adjacent sides of a polygon
  4. 9. intersection of two straight lines when one of the two lines was intersected by half
  5. 11. a polygon enclosed by five equal sides
  6. 12. junction of two circles
  7. 14. the supplementary angle of an interior angle of a polygon
  8. 15. a linesegment that connects two points on a circle
  9. 16. an enclosed convex plane figure whose sides and interior angles are all equal
  10. 18. a polygon enclosed by three sides
  11. 19. a triangle that was enclosed with three equal sides
  12. 22. a triangle with two equal sides
  13. 23. distance from the center of a polygon to a side of it
  14. 24. intersection of two straight lines when their intersection angle is 90degrees
  15. 26. a triangle with convexes that are all on the same triangle
  16. 27. an interior angle
  17. 29. two-times of a radius
  18. 30. a polygon enclosed by eight equal sides
  19. 31. a straight line that intersects with a circle at two points
Down
  1. 1. a polygon enclosed by nine equal sides
  2. 2. a polygon enclosed by twelve equal sides
  3. 3. an enclosed convex plane figure
  4. 5. a polygon enclosed by seven equal sides
  5. 6. the intersection of mediums in a triangle
  6. 8. an exterior angle
  7. 10. a triangle that bounds a circle
  8. 13. the enclosing boundary of a curved geometric figure
  9. 17. half of the diameter
  10. 20. a plane figure inclosed by two radiuses and an arc
  11. 21. a polygon enclosed by four sides
  12. 25. the center of the inscribled circle of a polygon
  13. 28. a straight line that intersects with a circle at one point
  14. 31. a quadrilateral that was enclosed by four equal sides and with interior angles of 90degrees