Geometry Tic-Tac-Toe Puzzle

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Across
  1. 1. If x=y and y=z, then x=z
  2. 4. Opposite sides/angle congruent, consecutive angles are supplementary, and diagonals bisect each other
  3. 6. angles on the same side of the transversal, in between parallel lines
  4. 7. a six-sided polygon with all sides of equal length and all angles of equal measure
  5. 8. A triangle with a 90degree angle and two sides of equal length
  6. 9. SAS~ AA~ SSS~
  7. 15. a line segment that has both endpoints on a circle
  8. 16. a line that touches a circle twice
  9. 18. opposite leg / adjacent leg
  10. 19. angles across from each on an X
  11. 21. angles on alternating sides of the transversal, in between the parallel lines
  12. 23. When the three sides of a right triangle are positive integers
  13. 24. most commonly used when given SAS in a non-right triangle
  14. 25. calculating probability, but have been given additional information
Down
  1. 2. Themeasure of any side or angle is equal to itself
  2. 3. in an isosceles triangle, the angles opposite the congruent sides are congruent
  3. 5. a quadrilateral with all sides of equal length
  4. 9. SAS SSS AAS ASA HL
  5. 10. SOH CAH TOA (used when finding the side of a right triangle)
  6. 11. A mid segment between two sides of a triangle is half the length of and parallel to the third side of the triangle
  7. 12. The event in which both the first and the second event occur
  8. 13. maps each point of a figure to a new point so that the resulting image has the same size and shape
  9. 14. All the outcomes in the sample space that are not in the original event
  10. 17. when there is a sequence of rigid transformations that carries one shape onto the other
  11. 20. a figure can be rotated a certain degrees about the center and will appear the same
  12. 22. (base 1 + base 2) times (height) divided by (2)