When symptoms occur, they often develop gradually, and may include: 1  Cough. 2  Fatigue, exhaustion, and light-headedness. 3  Rapid breathing.  Sensation of feeling the heart beat (palpitations) or a rapid 1  heartbeat. Shortness of breath that increases with activity and when lying down.
Yes, because a square is just a rhombus where the angles are all right angles. It is more common to call this shape a rhombus, but some people call it a rhomb or even a diamond.
The rhombus has a square as a special case, and is a special case of a kite and parallelogram. In Euclidean geometry, a rhombus (â), plural rhombi or rhombuses, is a simple (non-self-intersecting) quadrilateral all of whose four sides have the same length.Another name is equilateral quadrilateral, since equilateral means that all of its sides are equal in length.he dual polygon of a rhombus is a rectangle 1  : A rhombus has all sides equal, while a rectangle has all angles equal. 2  A rhombus has opposite angles equal, while a rectangle has opposite sides equal. 3  A rhombus has an inscribed circle, while a rectangle has a circumcircle.