Geometry Quadrilaterals

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Across
  1. 2. a parallelogram with four congruent sides
  2. 5. a parallelogram with four congruent sides and four right angles
  3. 6. a quadrilateral with two pairs of consecutive congruent sides
  4. 10. a quadrilateral with both pairs of opposite sides parallel
  5. 11. a segment connecting two nonconsecutive vertices of a polygon
  6. 12. sides of a trapezoid that are parallel
Down
  1. 1. a quadrilateral with at least one pair of parallel sides
  2. 3. pair of consecutive angles whose common side is a base of the trapezoid
  3. 4. segment whose endpoints are the midpoints of the legs of the trapezoid
  4. 7. sides of a trapezoid that are not the bases
  5. 8. a parallelogram with four right angles
  6. 9. trapezoid in which the legs are congruent but not parallel