\input{Dias.tikz}
   \tikzstyle{mybox1} =
   [
      mybox,
      minimum height=0.75cm,
      text width=8cm
   ]
   \tikzstyle{myboxleft} =
   [
      mybox1,
      text width=7cm
   ]
   \tikzstyle{myboxright} =
   [
      mybox1,
      text width=6cm
   ]
   \begin{tikzpicture}
      \pgfmathparse{3.5} \let\x\pgfmathresult;
      \pgfmathparse{5.5} \let\xx\pgfmathresult;
      
      \coordinate (V) at (0,0.375); %half minimum height

      \node at ($(-\x,0*\h)$) [myboxleft]
            {Teorema de Desigualdade de dois Triângulos};
            
      \node at ($(\x,0*\h)$) [myboxright]
            {Teorema da Desigualdade Triangular};
      \node at ($(0,1*\h)$) [mybox1]
            {Teorema da Triângulo Escaleno};

      \node at ($(-\x,2*\h)$) [myboxleft]
            {Teorema de Triângulo Isósceles};
            
      \node at ($(\x,2*\h)$) [myboxright]
            {Teorema do Ângulo Externo };

       \node at ($(\x,3*\h)$) [myboxright]
            {Teorema dos Ângulos Alternos-internos};
                                  
       \node at ($(0,4*\h)$) [mybox1]
            {Axioma de Congruência de Triângulos ($LAL$)};
            
            
       \draw[thick]
          ($(-\x,0*\h)+(V)$) -- ($(-\x,1*\h)-(V)$);
          
       \draw[thick]
          ($(\x,0*\h)+(V)$)  -- ($(\x,1*\h)-(V)$);
          
       \draw[thick]
          ($(-\x,1*\h)+(V)$) -- ($(-\x,2*\h)-(V)$);
          
       \draw[thick]
          ($(\x,1*\h)+(V)$)  -- ($(\x,2*\h)-(V)$);
          
       \draw[thick]
          ($(\x,2*\h)+(V)$)  -- ($(\x,3*\h)-(V)$);
          
       \draw[thick]
          ($(\x,3*\h)+(V)$)  -- ($(\x,4*\h)-(V)$);
          
       \draw[thick]
          ($(-\x,2*\h)+(V)$)  -- ($(-\x,4*\h)-(V)$);
          
       \draw[thick]
          ($(-\xx,0*\h)+(V)$)  -- ($(-\xx,2*\h)-(V)$);
          
         
   \end{tikzpicture}
