What does a power polygon look like?

From what I have been able to find out (using my daughter's homework) is that "Power Polygons" are any "normal" polygon that can be combined with another "normal" polygon to form another, different looking polygon (a mega-polygon, I guess?)that you can then divide up so you can see the individual "Power Polygon" pieces. Perhaps the name "Power Polygons" is derived from the fact that these polygons have the power to create other polygons. Logically then a "Power Polygon" is, really, just any polygon, just with a new, exciting, and high tech sounding name.