Respuesta:
[tex]n(n - 3) \div 2 = 31(28) \div 2 =434 \\ \\ angulos \: (n - 2) \times 180 \\ (13 - 2) \times 180 \\ 11 \times 180 = 1980 \: grados[/tex]
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Respuesta:
[tex]n(n - 3) \div 2 = 31(28) \div 2 =434 \\ \\ angulos \: (n - 2) \times 180 \\ (13 - 2) \times 180 \\ 11 \times 180 = 1980 \: grados[/tex]