0.5*(1422-3*142) = 9869 diagonals
A nine sided shape has 7 triangles
There are 9 triangles in an 11 sided shape
1o triangles
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A dodecagon is a 12 sided shape made from 10 triangles
Originating from one vertex there are 27 triangles
11
how many triangles are in a eight sided figure
8
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.
depends on what shape that vertex is in