Quadrilateral Vocabulary

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Across
  1. 3. Line from one corner to the opposite corner
  2. 5. when a shape has 2 equal sides (triangle or trapezoid)
  3. 9. a quadrilateral with 2 pairs of consecutive congruent sides
  4. 10. quadrilateral with one pair of opposite sides that are parallel
  5. 11. adds up to exactly 180 degrees
  6. 12. parallel sides of a trapezoid
  7. 14. polygon with all properties of parallelograms, rectangles, and rhombi
  8. 17. a polygon with 2 sets of opposite sides that are parallel and congruent
  9. 19. in order, or in a row
Down
  1. 1. equal measurement
  2. 2. a polygon with exactly 4 sides
  3. 4. to cut in two equal parts
  4. 6. creates a 90 degree angle
  5. 7. adds up to exactly 90 degrees
  6. 8. non-parallel sides of a trapezoid
  7. 13. never cross
  8. 15. parallelogram with 4 congruent sides, not any certain angle
  9. 16. across from
  10. 18. parallelogram with four right angles and 2 sets of congruent sides