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Across
  1. 2. theorem
  2. 7. conditional statement converse converse
  3. 9. obtuse angle
  4. 10. isosceles trapezoid
  5. 12. similarity
  6. 15. quadrilateral
  7. 16. alternate exterior angles
Down
  1. 1. segment
  2. 3. median
  3. 4. intersecting lines
  4. 5. transversal
  5. 6. perpendicular
  6. 8. inverse
  7. 11. equilateral triangle
  8. 13. square
  9. 14. midpoint
  10. 17. area