A square or a rectangle
Chat with our AI personalities
A right [angled] trapezium.
a square which is a subset of rectangles
That is a rectangle.
A rectangle can be any four-sided plane figure with four right angles, including a four-sided polygon, a quadrilateral, a rhombus, a quadrangle, and a right-angled parallelogram,
A four sided figure with four equal sides and no right angles is a diamond, or a rhombus. If it had four right angles, it would be a square.