Figure 10 Hinged triangles with rods
Drag B
Form a tiling of green triangles.
Form a tiling of green triangles and six-pointed stars. Make the angle of the star 60˚.
Mentally divide each star into six equilateral triangles and a hexagon in the middle.
Form a tiling of triangles and big white hexagons.
Form a tiling of triangles and regular dodecagons.