Geometric Crossword Puzzle

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Across
  1. 3. equation that states two ratios are equal
  2. 4. A quadrilateral plane figure having two parallel and two non parallel sides
  3. 6. of a Triangle segment from the vertex of a triangle to the midpoint of the opposite side
  4. 10. A 90 degree angle
  5. 11. of a Triangle segment from the vertex of a triangle perpendicular to the line containing the opposite side
  6. 12. faces faces of a prism that are not its base
  7. 13. A polygon with 5 sides and angles
  8. 15. A triangle having three unequal sides and angles
  9. 17. A quadrilateral having both pairs of opposite sides parallel to each other
  10. 21. educated guess based on known info
  11. 24. One part if a line
  12. 27. A parallelogram having four right angles, not all of which being congruent
  13. 28. sum of a triangles legs squared equal to the triangle's hypotenuse
  14. 30. of a segment line, ray segment, or plane that divides a segment into two congruent segments
  15. 31. A curve that is continuous and has endpoints that meet at the same point
  16. 33. The part of a straight line considered as originating at a point on the line and as extending in on direction from that point
  17. 37. two angles whose sum is 90 degrees
  18. 39. congruent polygons lying in parallel planes
  19. 40. A closed plane curve with no sides
  20. 41. A triangle which has two equal sides
  21. 43. points that lie on the same line
  22. 46. a prism where all sides are squares
  23. 49. A polygon with 6 sides
  24. 50. Segments Line segments that cross each other
  25. 51. distance around the polygon
Down
  1. 1. points that lie on the same plane
  2. 2. A polygon with four sides
  3. 5. A position in space
  4. 7. line in the plane of the circle that intersects the circle in one point
  5. 8. number of cubic units contained in a solid
  6. 9. Straight line passing trough the center of a circle touching both sides of the circle
  7. 13. Line segments Line segments that do not intersect
  8. 14. Two Line segments which cross to form a 90 degree angle
  9. 16. The line segment between two points on a given curve
  10. 18. A triangle with all equal sides and angles
  11. 19. An angle greater than 180 degrees
  12. 20. The intersection point of two sides of a plane figure
  13. 22. the non-adjacent angles formed by two intersecting lines Supplementary Angles / two angles whose sum adds up to 180 degrees
  14. 23. A continuous extent of length
  15. 25. arc whose endpoints are the endpoints of a diameter
  16. 26. Set of all points
  17. 29. consists of two points and the continuous part of a circle between them
  18. 32. An equilateral parallelogram having oblique angles
  19. 34. A triangle with one internal angle equal to 90 degrees
  20. 35. two or more circles in the same plane with the same center
  21. 36. All four sides equal in length
  22. 38. Angle less than 90 degrees
  23. 42. Angle measuring 180 degrees
  24. 44. Polygon with 8 sides and angles
  25. 45. A straight line extending from the center of a circle to the circumference
  26. 47. noncoplanar lines which do not intersect
  27. 48. comparison of two numbers by division