Respuesta:
9 lados
Explicación paso a paso:
# Lados: n
# Diagonales: n(n-3)/2
n(n-3)/2 = 3n
n(n-3) = 6n
n - 3 = 6
n = 9
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Respuesta:
9 lados
Explicación paso a paso:
# Lados: n
# Diagonales: n(n-3)/2
n(n-3)/2 = 3n
n(n-3) = 6n
n - 3 = 6
n = 9