That is the description of a square.
A quadrilateral. Could be a rhombus, trapezium, kite, parallelogram with no right angles. Never a square or rectangle.
Rhombus has 4 equal sides and no right angles
You don't tell us enough information. In a square, there are four sides and four angles. The sides are all equal and the angles are all right angles. In a rectangle, there are four sides and four angles The opposite sides are equal and the angles are all right angles. There is no other shape in which all angles are right angles.
A square. Its opposite sides are equal and it has 4 right angles.
it has 4 equal sides and no right angles
It's impossible for a quadrilateral to have no equal sides and have right angles.
A rhombus has four equal sides but no right angles.
A quadrilateral with four equal sides but no right angles is a rhombus.
A polygon with four equal sides and no right angles is called a rhombus. In a rhombus, all sides are of equal length, but the angles are not necessarily 90 degrees; they can be acute or obtuse. This characteristic distinguishes it from a square, which has both equal sides and right angles.
Rectangle
A square has 4 equal sides with 4 right angles.
It is a square that has 4 equal sides and 4 right angles.