0.5*(82-24) = 20 diagonals
An octagon has 16 diagonals.
8
In an octagon, each vertex can connect to other vertices except itself and its two adjacent vertices. Since there are 8 vertices in total, a vertex can connect to (8 - 3 = 5) other vertices to form diagonals. Therefore, from each vertex of an octagon, 5 diagonals can be drawn.
4 diagonals
None, if it is an irregular octagon.
An octagon has 16 diagonals.
8
If all of the diagonals are drawn from a vertex of an octagon, how many triangles are formed
it really isn't hard 5
No.
In an octagon, each vertex can connect to other vertices except itself and its two adjacent vertices. Since there are 8 vertices in total, a vertex can connect to (8 - 3 = 5) other vertices to form diagonals. Therefore, from each vertex of an octagon, 5 diagonals can be drawn.
5 triangles are formed.
16 diagonals* * * * *5. To all vertices except itself and one each on either side.
There are 20 diagonals
8 diagonals
4 diagonals
None, if it is an irregular octagon.