A rhombus can have 90 degree angle, although the rhombus is then called a square. You can see from the hierarchy of quadrilaterals that a rhombus can...

Do Rhombuses have 4 90 angles?

No, because a rhombus does not have to have 4 right angles. A square has got 4 sides of equal length and 4 right angles (right angle = 90 degrees). A Rhombus has got 4 sides of equal length and opposite sides are parallel and angles are equal.

Does a rhombus contain right angles?

A rhombus is quadrilateral with all side of equal length. Thus a quadrilateral with all sides of equal length and all angles right angles is still a rhombus but it is also a square. It is also a quadrilateral, a rectangle and a parallelogram. ... The properties are still there, so include the squares as (special) rhombi.