Math puzzle

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Across
  1. 2. surface of that figure
  2. 3. lines that are neither parallel nor intersect.
  3. 5. portions o a line with two endpoints
  4. 8. point that splits a segment into two congruent segments.
  5. 10. never intersect, stay the same distance apart.
  6. 13. what has four congruent angles?
  7. 14. a line bisects another line to create 90 degree angles.
  8. 15. an angle smaller than 90 degrees
  9. 17. object can be folded that both halfs are equal
  10. 18. a line that passes through the center of the circle?
  11. 19. quadrilateral with both pairs of opposite sides parallel.
  12. 21. if 2 sides of a triangle are congruent,the opposite angles are congruent.
  13. 23. the length of an arc in distance
  14. 24. an angle larger than 90 degrees
  15. 25. portion of a circle with two endpoints
  16. 27. quadrilateral with 1 pair of parallel lines.
  17. 28. transformation in which the preimage is congruent to the image.
  18. 29. angle formed by horizontal lines and the line of sight.
  19. 31. same size and shape
Down
  1. 1. angle created by horizontal lines and the line of sight
  2. 4. angles with the vertex on the circle and the sides are closed
  3. 6. points on the same line
  4. 7. What has four congruent sides and four congruent angles?
  5. 9. angle with the vertex at the center of a circle with the side that are redii.
  6. 11. flat surface made up of an infinite amount of points
  7. 12. transformation that changes the size of the figure
  8. 16. segment whose endpoints are on the circle
  9. 20. a line that intersects a circle at exactly 1 point
  10. 22. points on the same plane
  11. 26. half of the diameter?
  12. 30. what has four congruent sides?