Understanding 2D Rotation
This Demonstration allows you to rotate 2D objects. The red square represents the rotated version of the blue square.
This Demonstration allows you to manipulate 2D rotations of objects. It is one in a series of twelve covering TranslationTransform, RotationTransform, ScalingTransform, ReflectionTransform, RescalingTransform and ShearingTransform in 2D and 3D.