Mathematics Crossword Puzzle

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Across
  1. 3. revolution it is an angle in a complete rotation
  2. 5. shapes with equal size and shape are
  3. 6. lines that do not intersect
  4. 7. a polygon with eleven sides
  5. 10. a seven-sided polygon
  6. 13. a polygon with equal sides
  7. 16. a polygon with unequal sides/angles
  8. 18. the property of a parallelogram's opposite sides is _____.
  9. 19. angle it is an angle that forms a straight line
  10. 20. a parallelogram with all four sides congruent
  11. 21. quadrilateral has _____ number of vertices (3)
  12. 25. angles angles that shares a common side and vertex but no interior points in common
  13. 26. angles two nonadjacent angles formed by two intersecting lines
  14. 27. angles two angles whose sum of the measures is 90°
  15. 29. polygon with at least one interior angle > 180°
  16. 30. it is represented by a dot
  17. 33. a statement that needs to be proven before being accepted
  18. 34. it is the sum of a polygon's side lengths
  19. 36. a line segment has _____ endpoints
  20. 38. a quadrilateral with two pairs of congruent and adjacent sides
  21. 39. a polygon with ten sides
  22. 40. segment it is a portion of a line
  23. 41. a trapezoid with congruent legs
  24. 42. angle less than 90 degrees (6)
  25. 43. an angle greater than 180° but less than 360° is called ______.
  26. 44. a six-sided polygon
  27. 46. a five-sided polygon
  28. 48. angles two angles whose sum of the measures is 180°
  29. 49. a rectangle with all four sides congruent
Down
  1. 1. a closed plane figure consists of four line segments
  2. 2. a geometric surface with length and width
  3. 4. a polygon with equal angles
  4. 8. a nine-sided polygon
  5. 9. the sum of ______ angles in a quadrilateral is 360°
  6. 11. an eight-sided polygon
  7. 12. angles angles that are formed by a base and legs
  8. 14. angle an angle with a measure of 90°
  9. 15. angle greater than 90 degrees
  10. 17. a line segment joining two nonconsecutive vertices of a polygon
  11. 22. a parallelogram with four right angles
  12. 23. it is a branch of math that deals with shapes
  13. 24. a polygon is _____ if its sides and angles are equal
  14. 27. a polygon with all interior angles < 180°
  15. 28. lines that intersect and form a right angle
  16. 30. a quadrilateral with two pairs of opposite sides that are parallel
  17. 31. a three-sided polygon
  18. 32. this is where the edges meet
  19. 35. a polygon's boundary
  20. 37. a polygon with twelve sides
  21. 45. a polygon's building block
  22. 47. a quadrilateral with exactly one pair of opposite sides parallel