Floret pentagon

The floret pentagon is an irregular pentagon. It appears as in the vertex figures of several snub polyhedra and as faces of their duals.

Vertex coordinates
Coordinates for a floret pentagon with minor edge length 1 and major edge length 2 are: These coordinates lie coincide with vertices of a triangular tiling, and the floret pentagon can be dissected into 7 equilateral triangles.
 * $$\left(\pm 1,\,0\right)$$,
 * $$\left(\pm\frac{1}{2},\,-\frac{\sqrt{3}}{2}\right)$$,
 * $$\left(0,\,\sqrt{3}\right)$$.