5
An octagon has four (4) diagonals, each connecting two opposite vertices.
An octagon has 16 diagonals.
n-3 from each vertex.
4 diagonals
None, if it is an irregular octagon.
it really isn't hard 5
40
If all of the diagonals are drawn from a vertex of an octagon, how many triangles are formed
16 diagonals* * * * *5. To all vertices except itself and one each on either side.
5 triangles are formed.
You Can Get 6 triangles
An octagon has four (4) diagonals, each connecting two opposite vertices.
how many diagonals from a vertex a heptagon have
An octagon has 16 diagonals.
n-3 from each vertex.
There are 20 diagonals
8 diagonals