Quadrilaterals: A quadrilateral is a flat, two-dimensional shape that has four sides and four corners, or vertices
Rectangle: A flat geometric four-sided figure with right angles and with opposite sides parallel
Square: A flat geometric figure that has four equal sides and four right angles.
Triangle: A flat geometric figure that has three sides and three angles.
Circle: A circle is a shape that is made up of a curved line. It is round.