i think that it is 170, but im not positive...
252 diagonals
There are 275 diagonals in a 25 sided polygon
0.5*(152-45) = 90 diagonals
many triangles does a regular 46-gon have
189
A 20 sided polygon has 170 diagonals
170
20 20
In geometry, a 20-diagonal refers to the number of diagonals in a polygon with 20 sides (20-gon). The formula to calculate the number of diagonals in a polygon with ( n ) sides is given by ( \frac{n(n-3)}{2} ). For a 20-gon, this results in ( \frac{20(20-3)}{2} = \frac{20 \times 17}{2} = 170 ) diagonals. Thus, a 20-gon has 170 diagonals.
252 diagonals
It has 495 diagonals.
There are 119 diagonals.
It has 54 diagonals
78
There are 275 diagonals in a 25 sided polygon
0.5*(152-45) = 90 diagonals
39*36/2 = 702 diagonals.