Question

calcule a soma dos angulos internos

quadrilatero
hexagono
heptágono
octagóno
eneágono
decágono

Answer 1

180.(n - 2)

quadrilatero = 180.(4 - 2) = 180.2 = 360°
hexagono  = 180.(6 - 2) = 180.4 = 720°
heptágono  = 180.(7 - 2) = 180.5 = 900°
octagóno  = 180.(8 - 2) = 180.6 = 1080°
eneágono  = 180.(9 - 2) = 180.7 =  1260°
decágono  = 180.(10 - 2) = 180.8 = 1440°