Circle

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Across
  1. 3. a straight line segment whose endpoints both lie on the circle.
  2. 4. circle a circle that passes through all the vertices of the polygon
  3. 7. divide into two equal parts
  4. 11. the longest chord
  5. 16. a polygon with three edges and three vertices
  6. 17. a twelve-sided polygon
  7. 19. a line that intersects the curve in at least two (distinct) points
  8. 20. a triangle in which all three sides are equal
  9. 25. two lines which meet at a right angle
  10. 28. a line which touches a circle or ellipse at just one point
  11. 30. a nine-sided polygon
  12. 31. a polygon with four edges and four vertices
  13. 32. two circle intersect inexactly one point and their intersection of their interiors is empty
  14. 33. a shape with 4 equal sides and every angle is a right angle
Down
  1. 1. the portion of a disc enclosed by two radii and a circular arc
  2. 2. half of diameter
  3. 5. each vertex of the triangle lies on the circle
  4. 6. a plane shape with straight sides
  5. 8. a triangle center
  6. 9. a seven-sided polygon
  7. 10. a six-sided polygon
  8. 12. a triangle that has two sides of equal length
  9. 13. the center of mass
  10. 14. the angle between adjacent sides of a rectilinear figure.
  11. 15. two circle intersect in exactly one point and the intersection of their interiors is not empty.
  12. 18. between any side of a shape
  13. 21. a polygon that is equiangular and equilateral
  14. 22. a ten-sided polygon
  15. 23. an eight-sided polygon
  16. 24. A ∩ B of two sets A and B is the set that contains all elements of A that also belong to B
  17. 26. is any five-sided polygon
  18. 27. distance around the edge of a circle
  19. 29. a line segment from the center to the midpoint of one of its sides