Question

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Answer 1

Numero de lados:

$n-2=t$

Onde n  é o número de lados e t o de triângulos, logo:

$n-2=14\implies n=16\;lados$

Soma dos ângulos internos

$S_i=(n-2)180^{\circ}=14\cdot180^{\circ}=2520^{\circ}$