What can you tell about this tessellation? What motions move one tile onto its neighbor? What is the underlying shape before it was modified? How do you know?

More GeoGebra at mathhombre.blogspot.com. Base tessellation at https://www.geogebra.org/material/show/id/28859

More GeoGebra at mathhombre.blogspot.com. Base tessellation at https://www.geogebra.org/material/show/id/28859