There are 9 triangles in an 11 sided shape
A nine sided shape has 7 triangles
1o triangles
A dodecagon is a 12 sided shape made from 10 triangles
no triangles
#
Originating from one vertex there are 27 triangles
11
8
congruent triangles
There are 4 triangles that make up a pyramid. 4 on the sides and on the bottom a square or rectangle.
The closest thing to a triangle shape in a soccer field are the corner field marks and they are not technically triangles. The answer is zero.
It depends on what kind of shape it is. if it is a triangle, cut the shape in to two triangles, then find the square foot, if it is a quatrilateral, do the same thing.
There can be no closed 3D shape with only one square and 3 triangles.
Similar triangles
answer may vary depending on how you split it
depends on what shape that vertex is in