\input{Dias.tikz}

\pgfmathparse{1} \let\dw\pgfmathresult
\pgfmathparse{2.6} \let\dx\pgfmathresult

\tikzstyle{mybox1} =
[
   mybox,right
]
\begin{tikzpicture}

   \pgfmathparse{2} \let\w\pgfmathresult
   
   \node[mybox1,text width=\w cm]
   at (0,0)
   {APE Restrito};
   
   \pgfmathparse{\dw+\w} \let\x\pgfmathresult
   \pgfmathparse{2} \let\w\pgfmathresult
   
   \node[] at (\dx,0) {$\Leftrightarrow$};
   \pgfmathparse{\dx+\dw+\w} \let\dx\pgfmathresult
   \node[] at (\dx,0) {$\Leftrightarrow$};
   
   \node [mybox1,text width=\w cm]
   at (\x,0)
   {
      Existência de Retângulo
   };
   
   \pgfmathparse{\x+\dw+\w} \let\x\pgfmathresult
   
   \pgfmathparse{4} \let\w\pgfmathresult
   
   \pgfmathparse{\dx+\dw+\w} \let\dx\pgfmathresult
   \node[] at (\dx,0) {$\Leftrightarrow$};
   
   \node[mybox1,text width=\w cm]
   at (\x,0)
   {
      Qualquer Triângulo tem\\Soma dos Ângulos 180\textdegree
   };
   
   \pgfmathparse{\x+\dw+\w} \let\x\pgfmathresult
   \pgfmathparse{2} \let\w\pgfmathresult
   
   \node[mybox1,text width=\w cm]
   at (\x,0)
   {APE};
   
\end{tikzpicture}