64 sides = 64 angles
From one angle you can draw (64 - 2) diagonals = 62.
Lines from an angle to the immediately adjacent angles are sides, not diagonals.
A 7 sided polygon has 14 diagonals
It will have 13 sides because 0.5*(132-39) = 65 diagonals
11
The equation is: 0.5*(n2-3n) = diagonals whereas n is the number of sides of the polygon
Providing that it is a regular polygon it will have 8 sides.
38 diagonals
It works out that a polygon with 1175 diagonals has 50 sides
1/2*(142-42) = 77 diagonals
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.
Number of sides minus two equals number of diagonals drawn from one vertex.
The formula for the number of diagonals is: 0.5*(n^2-3n) whereas 'n' is the number of sides of the polygon
120*(120-3)/2 = 7020
how many diagonals are there iin a polygon of 11 sides
A polygon that has 104 diagonals will have 16 sides
That polygon is called a "triangle". It has no diagonals.
A 7 sided polygon has 14 diagonals
You can use the formula D=S-2 where D is the number of possible diagonals and S is the number of sides the polygon has.