Mathematics Crossword Puzzle

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Across
  1. 6. has a circle inside it, touching all its sides
  2. 7. line segment joining two nonconsecutive vertices of a polygon
  3. 8. the point where a side of a quadrilateral crosses an axis
  4. 9. do not require a definition but can be describe
  5. 11. all sides and angles equal (a square)
  6. 12. where all interior angles are less than 180°, and the diagonals lie inside the shape.
  7. 14. the sides can form another quadrilateral, which will always be a parallelogram.
  8. 18. the side next to the reference angle in a right triangle
  9. 20. parallelogram with all four sides congruent
  10. 22. points lying on the same straight line
  11. 23. the side across the reference angle in a right triangle
  12. 26. the study of figures on a plane or on a space
  13. 27. two nonadjacent angles formed by two intersecting lines
  14. 29. uses facts, rules, and definitions
  15. 34. a trapezoid with congruent legs
  16. 35. needs to be proven before being accepted
  17. 37. a line crossing through a quadrilateral
  18. 39. The space enclosed by the quadrilateral, calculated differently for each type.
  19. 40. The sum of the lengths of all sides of the quadrilateral.
  20. 44. at least one interior angle greater than 180 degrees, and one diagonal lies outside the shape
  21. 45. the most geometrically perfect quadrilateral
  22. 48. uses patterns
  23. 49. closed plane figure consisting of four line segments or sides
  24. 50. angles are all less than 90°
  25. 54. non common side forming a straight angle
  26. 56. Some quadrilaterals, like squares and rectangles, have lines of symmetry and rotational symmetry.
  27. 58. two angles whose sum of the measures is 90
  28. 59. flat surface
  29. 61. parallelogram with four right angles
  30. 62. more than 90 degree
  31. 63. a quadrilateral with no lines of symmetry
Down
  1. 1. These are called cyclic quadrilaterals
  2. 2. location or position
  3. 3. A polygon with 12 sides
  4. 4. two angles whose sum of the measures is 180"
  5. 5. quadrilateral with exactly one pair of opposite sides parallel
  6. 6. sides and angles of different lengths and measures
  7. 10. The angles adjacent to the same base in a trapezium are supplementary (add up to 180°).
  8. 13. the intersection of altitudes of a quadrilateral
  9. 15. lines in a plane that do not intersects
  10. 16. quadrilaterals that are identical in size and shape
  11. 17. quadrilateral with no sides crossing
  12. 19. an angle with a measure of 90
  13. 21. quadrilateral with two pairs of congruent and adjacent sides
  14. 24. A 15-sided polygon
  15. 25. The perpendicular distance from the center of a cyclic quadrilateral to one of its sides.
  16. 28. rectangle with all four sides congruent
  17. 30. The point of intersection of the medians of a quadrilateral.
  18. 31. divides an angle into two congruent angles
  19. 32. angle formed by two rays or lines that meet at a point
  20. 33. sides in the same ratio in similar quadrilaterals
  21. 36. lines that intersect and form a right angles
  22. 38. infinite number of line segment
  23. 41. angles formed by a base and a legs
  24. 42. A polygon with six sides
  25. 43. a polygon with 5 sides
  26. 46. a polygon with 3 sides
  27. 47. quadrilateral in 3d space with non-coplanar vertices
  28. 51. two angles sharing a common side and vertex but no interior points in common
  29. 52. quadrilateral with two pairs of opposite sides that are parallel
  30. 53. sides crossing each other
  31. 55. starts at one point and extends infinitely
  32. 56. the steepness of a side of a quadrilateral in a coordinate plane
  33. 57. the figure formed by two rays, called the sides of the angle, sharing a common endpoint called the vertex.
  34. 60. lines meeting at a single point