[b]Move [/b]the[b] [color=#0000ff]blue points[/color][/b] to investigate the properties of each type of quadrilateral. ([color=#bf9000]Diagonal midpoints are yellow.[/color])[br][b][br]Are there any properties that apply to more than one classification?[br][/b][i]Things to observe: parallel sides, side lengths, angle measures, location of diagonal midpoints, lengths of segments along diagonals, sum of all angles, sum of consecutive angles[/i]