No not normally.
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An angle in a rhombus can be any value less than 180 degrees. However, if the angle is 90 degrees, the rhombus becomes a square.
This depends to some extent on context.A rhombus is a parallelogram with all sides equal. On this basis a rhombus with 90 degree angles is just a square. Some authorities insist on defining a rhombus as not containing any right angles.
A 90 degree angle is a right angle
A rhombus, trapezoid or parallelogram could all contain a 45 degree vertex. Squares and rectangles only have 90 degree vertices.
A right-angle is a 90 degree angleA right triangle has one, and a 90-degree angle isone.