Circle Review (AndyZhang 9-5)

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Across
  1. 2. a straight line segment whose endpoints both lie on the circle
  2. 7. a straight line passing from side to side through the center of a body or figure, especially a circle or sphere
  3. 12. a plane figure with twelve sides
  4. 14. the set of points which are an equal distance to a fixed point
  5. 15. the center of the incircle of a triangle or other figure
  6. 18. a circle that passes through all the vertices of the polygon
  7. 20. a plane figure with five straight sides and five angles
  8. 22. a plane figure with seven straight sides and angles
  9. 23. a plane figure with nine straight sides and nine angles
  10. 24. a plane figure with at least three straight sides and angles, and typically five or more
  11. 26. divide into two equal parts
  12. 28. a polygon that is equiangular and equilateral
  13. 29. having four straight sides
  14. 30. a plane figure with three straight sides and three angles
  15. 31. relating to the center of gravity
  16. 33. at an angle of 90° to a given line, plane, or surface
Down
  1. 1. the plane figure enclosed by two radii of a circle or ellipse and the arc between them
  2. 3. a plane figure with eight straight sides and eight angles
  3. 4. a triangle that has two sides of equal length
  4. 5. a straight line from the center to the circumference of a circle or sphere
  5. 6. a plane figure with six straight sides and angles
  6. 8. a triangle in which all three sides are equal
  7. 9. Two circles in the same plane if they intersect in exactly one point and their intersection of their interiors is empty
  8. 10. a point or line common to lines or surfaces that intersect
  9. 11. the angle between adjacent sides of a rectilinear figure
  10. 13. the enclosing boundary of a curved geometric figure, especially a circle
  11. 16. Two circles in the same plane if they intersect in exactly one point and the intersection of their interiors is not empty
  12. 17. a triangle that is enclosed by and "fits snugly" inside a circle
  13. 19. a plane figure with ten straight sides and angles
  14. 21. the trigonometric function that is equal to the ratio of the sides opposite and adjacent to an angle in a right triangle
  15. 25. the angle between a side of a rectilinear figure and an adjacent side extended outward
  16. 27. a plane figure with four equal straight sides and four right angles
  17. 32. a straight line that cuts a curve in two or more parts
  18. 34. a line from the center of a regular polygon at right angles to any of its sides