THE BEST SIDE OF TYPES OF QUADRILATERALS

All four sides in the square are equivalent, and the other sides with the sq. are parallel to one anotherTake note one: Quite possibly the most general trapezoids and isosceles trapezoids do not have perpendicular diagonals, but there are infinite numbers of (non-similar) trapezoids and isosceles trapezoids that do have perpendicular diagonals and