Question

2) Qual o polígono, cuja a soma dos ângulos internos vale 1800°.

Answer 1

$\large \boxed{ \begin{array}{l} \rm{(n - 2) \cdot180 = 1800} \\ \\ \rm{(n - 2) = \dfrac{1800}{180} } \\ \\ \rm{ n - 2 = 10} \\ \\ \rm{n = 10 + 2} \\ \\ \boxed{ \boxed{ \rm{n = 12}}} \leftarrow \rm{Dodec\acute{a}gono}~~~~\rm{ok?} \end{array}}$