It depends on whether you are counting the large main trriangles or counting all of the other triagles formed when drawing the just the Maine triangles. I counted 8 main triangles in a regular eneágono.
no triangles
10
the answer is pyramid
Infinitely many. Having found one triangle, you can find infinitely many similar triangles.
4 triangles make 1 hexagon. (easy way to find out how many triangles there are in a polygon- take number of sides of the polygon, subtract 2 from it, that's your answer!)
As many as she wants.
there are 27 triangles in a triangle
48 triangles
There are 15 triangles in a 17-agon
15 triangles
15 triangles!!!!!!!!!!
it has 13 triangles