Quadrilaterals and Triangles

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Across
  1. 1. a parallelogram with 4 congruent sides
  2. 5. a quadrilateral with one set of parallel sides
  3. 6. an angle that's less than 90 degrees
  4. 7. an angle that's greater than 90 degrees
  5. 8. a parallelogram with 4 congruent sides and 4 right angles
  6. 10. a quadrilateral with 2 sets of parallel lines
  7. 11. a parallelogram with 4 right angles
Down
  1. 1. an angle that's exactly 90 degrees
  2. 2. a triangle with 0 congruent sides
  3. 3. a triangle with 2 congruent sides
  4. 4. a triangle with 3 congruent sides
  5. 9. a polygon with 4 sides