Rotational Symmetry of all Quadrilaterals
Rotational Symmetry occurs when a shape can be rotated to land back on top of itself. Knowing whether or not quadrilaterals have rotational symmetry in important when reasoning about their attributes.
Rotations are Defined by a center and an angle.
The quadrilaterals below have the center of rotation identified already. Use the slider (Red Point) to rotate the quadrilaterals and find the angle of rotational symmetry for each.