Three fewer than the total number of vertices.
Depends on the shape.
Three
n-3 from each vertex.
17
110.Improved Answer:-It is 4
If all of the diagonals are drawn from a vertex of an octagon, how many triangles are formed
It is 18 diagonals
A diagonal of a polygon is a segment drawn from one vertex to another non-adjacent vertex in a polygon. This leaves 32 diagonals that can be drawn from one vertex in a 35 sided polygon.
3
Depends on the shape.
Three
n-3 from each vertex.
5
36
In a 54-sided polygon, 53 possible diagonals can be drawn from one vertex to another. These diagonals will not intersect. Therefore, the interior will be divided into 54 regions by the 53 diagonals plus the two sides of the original polygon that adjoin the vertex from which the diagonals are drawn.
12-3 = 9
4