ALL FACTS ABOUT CIRCLE

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Across
  1. 2. a plane figure with eight equal straight sides
  2. 5. the plane figure enclosed by two radii of a circle or ellipse and the arc between them.
  3. 6. a plane figure with ten equal straight sides
  4. 11. a plane figure with seven equal straight sides
  5. 13. a line touching only a point on a circle
  6. 14. a point or line common to lines or surfaces that intersect.
  7. 16. a circle that passes though all the vertices of the polygon
  8. 17. the angle between adjacent sides of a rectilinear figure.
  9. 18. the intersection of the angular bisector of a triangle
  10. 19. they intersect in exactly one point and their intersection of their interiors is empty.
  11. 20. a four-sided figure.
  12. 22. a plane figure with twelve equal straight sides
  13. 23. A triangle with two equal sides.
  14. 26. two circles is a tangent of both circles that intersects the segment joining the centers of two circles.
  15. 28. a polygon that is equiangular (all angles are equal in measure) and equilateral (all sides have the same length)
  16. 30. a line segment whose endpoints both lie on a circle
  17. 31. the center of the incircle of a triangle or other figure
  18. 32. a plane figure with four equal straight sides
  19. 33. the distance from the centre to a chord in a circle
  20. 34. a plane figure with three straight sides and three angles.
Down
  1. 1. divide (a line, angle, shape, etc.) into two equal parts.
  2. 3. the enclosing boundary of a curved geometric figure, especially a circle.
  3. 4. a plane figure with at least three straight sides and angles, and typically five or more.
  4. 7. a plane figure with nine equal straight sides
  5. 8. In geometry it usually means drawing one shape inside another so that it just touches
  6. 9. a straight line passing from side to side through the center of a body or figure, especially a circle or sphere.
  7. 10. a straight line from the center to the circumference of a circle or sphere.
  8. 12. the angle between a side of a rectilinear figure and an adjacent side extended outward.
  9. 15. A triangle with all three sides of equal length
  10. 21. at an angle of 90° to a given line, plane, or surface.
  11. 24. the set of points which are an equal distance to a fixed point
  12. 25. a line cutting through a circle
  13. 27. a plane figure with six equal straight sides
  14. 29. a plane figure with five equal straight sides