a rectangle does not have four equal sides and its opposite sides are equal and has four right angles
This is a parallelogram, opposite sides are of equal length and opposite angles are equal in size.
A rhombus has 4 sides of equal length, opposing parallel sides, and no right angles
Yes, and all four sides are equal. The difference is that in the rhombus (tilted square), the angles are not right angles. There are two opposite acute angles and two opposite obtuse 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 or a rectangle