Ola Estevao
Si = (n - 2)*180 = 1980
180n - 360 = 1980
180n = 2340
n = 2340/180 = 13 lados
pronto
si=n*180-360=1980
180n=2.340
n=13 lados - tridecágono
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Ola Estevao
Si = (n - 2)*180 = 1980
180n - 360 = 1980
180n = 2340
n = 2340/180 = 13 lados
pronto
si=n*180-360=1980
180n=2.340
n=13 lados - tridecágono