Infinitely many. Given any triangle, a line from a vertex to any point on the opposite side will give two triangles. That process can continue indefinitely.
11
8
Originating from one vertex there are 27 triangles
Triangles make 3 sided shapes that have 3 interior angles that add up to 180 degrees
6 sided and 3 sided shapes respectively
the shape that can make two smaller triangles is parallelogram.
the star of david
__ / \ \ __ /
a square
Hexagon
They can form into a 4 sided quadrilateral if they are the same size.
You can't make a 4 sided shape with a total of 207