Geometry crossword puzzle

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Across
  1. 5. Curve a curve that is continuous and has endpoints that meet at the same point
  2. 7. a polygon with four sides
  3. 11. a rectangle having all four sides of equal length
  4. 12. a quadrilateral plane figure having two parallel and two nonparallel sides
  5. 13. a straight line passing through the center of a circle or sphere and meeting the circumference or surface at each end
  6. 14. a polygon having six sides and six angles
  7. 17. a closed plane curve consisting of all points at a given distance from a point within it called the center
  8. 18. Line Segments line segments that cross each other
  9. 21. a position in space
  10. 22. the part of a straight line considered as originating at a point on the line and as extending in one direction from that point
  11. 23. Angle an angle greater than 90 degrees but less than 180 degrees
Down
  1. 1. Triangle a triangle with all sides equal and all angles equal
  2. 2. the line segment between two points on a g
  3. 3. figures that do not intersect
  4. 4. a polygon with 5 sides and 5 angles
  5. 6. Triangle a triangle having three unequal sides and angles
  6. 8. the intersection point of two sides of a plane figure
  7. 9. Line Segments two line segments which cross to form 90 degree angles
  8. 10. Triangle a triangle with one internal angle equal to 90 degrees
  9. 15. Angle an angle less than 90 degrees but greater than 0 degrees
  10. 16. a polygon having eight angles and eight sides
  11. 19. Angle a 90 degree angle
  12. 20. Triangle a triangle which has two sides equal