Question

me ajudem gente. prfv
Um poliedro convexo de 7 faces possui 10 vértices quanto arestas possui esse poliedro ?​​

Answer 1

$\large\boxed{\begin{array}{l}\underline{\rm Relac_{\!\!,}\tilde ao\,de\,Euler}\\\sf V+F=A+2\\\tt dados\begin{cases}\sf F=7\\\sf V=10\\\sf A=?\end{cases}\\\underline{\boldsymbol{soluc_{\!\!,}\tilde ao\!:}}\\\sf V+F=A+2\\\sf 10+7=A+2\\\sf A+2=17\\\sf A=17-2\\\sf A=15\end{array}}$