Geometry Puzzle

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Across
  1. 2. Two Crongruent angles sharing a common vertex
  2. 3. a portion with 1 fixed end and the other end continuous
  3. 5. a pair of suplementary angles froming a straight line
  4. 8. Angles on same side of a transversal that adds upto 180 degree
  5. 9. A line which intersects 2 or more parallel lines at different points
  6. 12. Pair of line which intersect at a right angle
  7. 13. A pair of angles that add upto 180 degree
Down
  1. 1. A pair of lines which will never intersect
  2. 4. A polygon with six sides
  3. 6. Pair of congruent angles on the opposite side of the transversal
  4. 7. A pair of angles that add upto 90 degree
  5. 10. A pair of congruent angles on the same side of the transversal and should be above the parallel line
  6. 11. A portion of a line with 2 fixed end points