rhombus
A rhombus is a 4 equal sided quadrilateral with equal opposite acute angles and equal opposite obtuse angles with diagonals that bisect each other at right angles.
A parallelogram.
They are equal and parallel.
Equal and parallel
A Quadrilateral Kite!
A parallelogram.
A rhombus is a simple quadrilateral with all its sides of equal length. As a result,its opposite sides are parallel,its opposite angles are equal,its adjacent angles are supplementary, andits diagonals bisect each other at right angles.
A quadrilateral with opposite sides equal and parallel
An isosceles trapezoid is a 4 sided quadrilateral that has 1 pair of opposite parallel sides of different lengths and has 2 equal diagonals plus equal base angles.
A Rectangle
A parallelogram.