4
Two triangles can be formed by the diagonals of one vertex of a four-sided polygon.
There are 8
It is: 8-2 = 6 triangles
An hexagon
If all of the diagonals are drawn from a vertex of an octagon, how many triangles are formed
4
Two triangles can be formed by the diagonals of one vertex of a four-sided polygon.
5 triangles are formed.
depends on what shape that vertex is in
4.
1 triangle is formed.
There are 8
4
8
21