A square and a rhombus both have all sides equal and opposite sides parallel.
Square
Rectangle.
A rectangle
square or rhombus
a square is a plain figure which has all the sides equal but a rhombus is a plain figure which has the opposite sides equal.
rectangles squares
A general quadrilateral.
a square
A square and a rhombus both have all sides equal and opposite sides parallel.
Square
a rectangle
Rectangle.
quadrilateral
A rectangle
square or rhombus
Any regular polygons with an even number of sides can have opposite sides equal and parallel.For quadrilaterals, if any two sides are equal and parallel, the other two sides must also be equal and parallel, and it is a parallelogram (square or rhombus). If the equal sides are not parallel, the figure is a trapezoid (UK trapezium).