16 diagonals
* * * * *
5. To all vertices except itself and one each on either side.
No.
5 triangles are formed.
The number of Diagonals in one vertex of a Triangle is 0 (zero)..
There are 10 possible diagonals drawn from one vertex of the 13-gon which divide it into 11 nonoverlapping triangles.
12-3 = 9
No.
If all of the diagonals are drawn from a vertex of an octagon, how many triangles are formed
it really isn't hard 5
5 triangles are formed.
six
An octagon has 16 diagonals.
No, I think 5 diagonals would be the maximum from a particular vertex. Let's label the vertices [A through H].For this example, they go clockwise, starting with A and going around to H, so looking at A: B & H are adjacent and both of the segments AB and AH are actually sides of the octagon, not diagonals. The remaining diagonals, from A are:ACADAEAFAG
8
The number of Diagonals in one vertex of a Triangle is 0 (zero)..
0.5*(82-24) = 20 diagonals
Number of sides minus two equals number of diagonals drawn from one vertex.
In a polygon with n sides, the number of diagonals that can be drawn from one vertex is given by the formula (n-3). Therefore, in a 35-sided polygon, you can draw (35-3) = 32 diagonals from one vertex.