\input{Dias.tikz}

\tikzstyle{col1} =
[
      text width=4cm,
]
\tikzstyle{col2} =
[
      text width=4cm,
      xshift=4cm,
]
\tikzstyle{row2} =
[
      yshift=-0.5cm,
]

\begin{tikzpicture}
[
      node distance=1cm,
      inner sep=0.2cm,
]

      \node[mybox,col1] (circ)
      {Circumfer\^encia};
      
      \node[mybox,col2] (intcirc) [right of=circ]
      {Interior de Circumfer\^encia};


      \draw [arrow] (circ.east) -- (intcirc.west);


      \node[mybox,col1,row2] (triangulo)[below of=circ]
      {Tri\^angulo};
      
      \node[mybox,col1] (separar) [below of=triangulo]
      {Reta que Separa o Plano};


      \node[mybox,col2] (inttri)[right of=triangulo,yshift=-0.5cm]
      {Interior de Tri\^angulo};
      
      \draw [arrow] (triangulo.east) -- (inttri.west);
      \draw [arrow] (separar.east)   -- (inttri.west);


\end{tikzpicture}
