0.5*(402-120) = 740 diagonals
50*(50 - 3)/2 = 1175 diagonals.
The formula is: 0.5*(n2-3n) where n is the number of sides of the polygon. So: 0.5*(81-27) = 27 diagonals
A 9-sided polygon, is named 'Nonagon'. The number of diagonals are '9' From any one node, to the centre of the opposite side. Since there are 9 nodes and 9 lines, then there will be 9 diagonals.
It will have 7 sides
56*(56-3)/2 which is 1484
That polygon is called a "triangle". It has no diagonals.
how many diagonals are there iin a polygon of 11 sides
An 11 sided polygon has 44 diagonals.
There are 90 diagonals in a 15-sided polygon.
A four-sided polygon has two diagonals.
It has 35 diagonals
There are 170 diagonals
There are 77 diagonals
A polygon with 14 diagonals will have 7 sides
It has 40 diagonals.Improved Answer:-Using the formula for diagonals of a polygon: 0.5*(442-132) = 902 diagonals
153 diagonals.
An n sided polygon has n*(n-3)/2 diagonals.