Math crossword

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Across
  1. 3. a regular polygon with eight sides
  2. 4. a regular polygon with ten sides
  3. 6. a line that touches the circle on one point
  4. 9. an intersecting line, especially one intersecting a curve at two or more points.
  5. 12. the distance from the center to a point on the circle
  6. 14. a triangle whose two sides are equal
  7. 16. a polygon with equal sides
  8. 17. double the distance from the center to a point on the circle
  9. 18. a polygon with three sides
  10. 21. a set of points that are equal-distant to a fixed point
  11. 25. a triangle whose three sides are equal
  12. 26. a polygon with four sides
  13. 29. a regular polygon with four sides
  14. 31. the distance between the center and a chord
  15. 32. a regular polygon with twelve sides
  16. 34. two lines that form a 90 degree are _____to each other
Down
  1. 1. the angle inside two adjacent sides of a polygon
  2. 2. a regular polygon with nine sides
  3. 5. an "outside" angle
  4. 7. a circle that has a triangle with three vertexes on it
  5. 8. two circles that crosses each other
  6. 10. a segment connecting two points on a circle
  7. 11. two circles meet on one point and one is inside the other
  8. 13. the perimeter of a circle
  9. 15. a figure that has more than two sides
  10. 19. two circles meet on one point and none is inside the other
  11. 20. the center of a circumscribed circle
  12. 22. a plane figure bounded by two radii and the included arc of a circle.
  13. 23. a triangle whose three vertexes are on a circle
  14. 24. a regular polygon with seven sides
  15. 27. a regular polygon with six sides
  16. 28. a regular polygon with five sides
  17. 30. the intersection of the midlines of a triangle
  18. 33. two angles that _______ are equal to each other