Jess

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Across
  1. 2. middle number in sorting
  2. 4. all sides equal and all angles equal
  3. 5. the exact middle point
  4. 7. identical in form
  5. 9. a quadrilateral with only one pair of parallel sides
  6. 12. four sided equiangular shape with opposite sides equal
  7. 14. adding up to 180 degrees
  8. 16. line that extends from one vertex perpendicular to the opposite side
  9. 17. at an angle of 90 degrees
Down
  1. 1. a figure with opposite sides parallel
  2. 3. triangle with two equal sides
  3. 6. a shape with six sides
  4. 8. parallelogram with equal opposite sides and equal opposite angles
  5. 10. side by side, keeping the same distance
  6. 11. a four sided figure with equal sides and equal angles
  7. 13. a triangle with all sides of different length
  8. 15. all equal sides