<img src="https://tex.z-dn.net/?f=D%3D%20%5Cfrac%7Bn%28n-3%29%7D%7B2%7D%20%20%5C%5C%20S%3D180%28n-2%29" />
D : número de diagonales
S : suma de angunos internos
n : número de lados
Polígono de 16 lados
<img src="https://tex.z-dn.net/?f=D%3D%20%5Cfrac%7B16%2816-3%29%7D%7B2%7D%20%20%5C%5C%20D%3D%5Cfrac%7B16%2813%29%7D%7B2%7D%20%20%5C%5C%20D%3D8%2813%29%20%5C%5C%20D%3D104%20%5C%5C%20%20%5C%5C%20S%3D180%2816-2%29%20%5C%5C%20S%3D180%2814%29%20%5C%5C%20S%3D252" />
Polígono de 22 lados
<img src="https://tex.z-dn.net/?f=D%3D%20%5Cfrac%7B22%2819%29%7D%7B2%7D%20%20%5C%5C%20D%3D11%2819%29%20%5C%5C%20D%3D209%20%5C%5C%20%20%5C%5C%20S%3D180%2822-2%29%20%5C%5C%20S%3D180%2820%29%20%5C%5C%20S%3D3600" />
Polígono de 36 lados
<img src="https://tex.z-dn.net/?f=D%3D%20%5Cfrac%7B36%2833%29%7D%7B2%7D%20%20%5C%5C%20D%3D18%2833%29%20%5C%5C%20D%3D594%20%5C%5C%20%20%5C%5C%20S%3D180%2834%29%20%5C%5C%20S%3D612" />
Polígono de 28 lados
<img src="https://tex.z-dn.net/?f=D%3D%20%5Cfrac%7B28%2825%29%7D%7B2%7D%20%20%5C%5C%20D%3D14%2825%29%20%5C%5C%20D%3D350%20%5C%5C%20%20%5C%5C%20S%3D180%2826%29%20%5C%5C%20S%3D468" />
Polígono de 30 lados
<img src="https://tex.z-dn.net/?f=D%3D%20%5Cfrac%7B30%2827%29%7D%7B2%7D%20%20%5C%5C%20D%3D15%2827%29%20%5C%5C%20D%3D405%20%5C%5C%20%20%5C%5C%20S%3D180%2828%29%20%5C%5C%20S%3D504" />.