Quad-C
Do the drag test on each of the vertices.
Use your knowledge of polygons to try to figure out what kind of polygon this is.
Tell all you can about the figure. You may want to consider looking at sides angles and diagonals.
Is one pair of opposite sides parallel? Are both?
Are any sides congruent? Are the congruent sides opposite each other? Are they adjacent?
Are angles congruent? Is one pair of opposite angles congruent? Are both pair of opposite angles congruent?
Do diagonals bisect each other? Are diagonals congruent? Are diagonals perpendicular?