Square
Rhombus!
a rhombus
A quadrilateral with 4 right angles and opposite sides that are parallel can be either a rectangle if the adjacent sides are of different length or a square if the adjacent sides are of the same length.
They are the pairs of sides which are parallel.
The shape you are describing is a rhombus. A rhombus has all four sides of equal length, opposite sides that are parallel, and opposite angles that are equal. When the diagonals of a rhombus are drawn, they intersect at right angles.
a pentagon
A Rhombus
(1) Opposite sides are the same length and (2) All four corners are right-angles.
rhombus. The rhombus is a quadrilateral with all sides equal in length. It is also a parallelogram, so opposite sides are parallel and equal in length, and opposite angles are equal.
rhombus
A Rhombus
Rhombus