Circle review Tony

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