A.

1. It is a closed figure with four straight sides.

2. Some of its sides have the same length.

3. Some of its sides are parallel.

4. It has four pairs of angles that are supplementary.

5. It has two pairs of angles that are congruent.

6. It has no right angles.

7. Its opposite angles are not congruent.

B.

1 .It is a closed figure with straight sides.

2. It has six exterior angles.

3. Some of its exterior angles measure 150 degrees.

4. Its other exterior angles measure 60 degrees.

C.

1. It is a closed figure with straight sides.

2. Its angle bisectors do not contain its bisectors.

3. None of its sides are perpendicular.

4. It has six pairs of angles.

5. Two of its angles are congruent and acute.

6. Two of its angles are congruent and obtuse.

7. It has four pairs of supplementary angles.

8. Its diagonals are not congruent.

D.

1. It is a closed figure with straight sides.

2. It has only two diagonals.

3. Its diagonals bisect each other.

4. Its diagonals are perpendicular.

5. It diagonals are not congruent.