A rhombus has interior angles that equal 360 degrees. In a rhombus, the interior angles that are opposite each other are always equal, and the diagonals of the rhombus always bisect each other and form right angles.
A rhombus is any polygon that has four equal sides. Each side is parallel to the side opposite of it. A square is considered a rhombus since it has four equal sides. A rhombus is also considered a parallelogram since the opposite sides are parallel and the opposite angles are equal to each other. This shape is also referred to as a diamond.