Show how this pentagonal tile can be used to tile the plane and describe the transformations which map this pentagon to its images in the tiling. The lengths AE and ED are 1 unit and the length CD is 2 units. The angles B and E are right angles and the angles A, C and D are 120°.
Here is an animation that may help you....
The create button makes new tiles.
You can then rotate, flip vertically or delete each tile.