geometry

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Across
  1. 5. created by angle bisectors
  2. 6. negates and flips the hypothesis and conclusion
  3. 10. y-y1=m(x-x1)
  4. 11. have negative reciprocal slopes
  5. 12. have the same slope
  6. 14. where the sides intersect
  7. 15. negates the hypothesis and conclusion
  8. 17. the longest leg of the triangle
  9. 18. if a=b, then b=a
  10. 20. congruent angles across from each other
Down
  1. 1. corresponding parts of congruent triangles are congruent
  2. 2. flips the hypothesis and conclusion
  3. 3. two supplementary angles that form a straight line
  4. 4. created by perpendicular bisectors
  5. 7. 180 degrees
  6. 8. two congruent sides(legs)
  7. 9. 90 degrees
  8. 13. a=a
  9. 16. three pairs of congruent sides
  10. 19. a flat surface made up of points