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.
Also ever square is a rhombus, but not every rhombus is a square. A rectangle is a four-sided figure with four right angles. A rhombus is a four-sided figure with four equal length sides. A square is a four-sided figure with equal sides and four right angles.