Jeremy drew a polygon with four right angles and four sides with the same length. what kind of polygon did jeremy draw?

Jeremy drew a square or a diamond depending on perception. If all four sides are equal and all 4 angles are exactly right angles then the polygon is even on all sides. This type of shape will result in a square if a looking at a flat surface on top and bottom. If the shape is placed with an angle at the top and bottom it could be perceived as a diamond.