Equilateral Pentagon That Tiles The Plane
With Two Non-consecutive Complementary to 360° Angles
A+C = 360°
Each pentagon of this family, with the range 60° < A < 180°, tiles the plane at least with the topologies below:
See now the interesting demonstration below:
The property 2D+B+C = 360° allows the following tiling, for all the members of the family: