\begin{tikzpicture}[x=1ex,y=1ex,baseline={([yshift=-.5ex]current bounding box.center)}]
        \coordinate (v);
        \def \n {3}
        \def \rad {1.2}
        \foreach \s in {1,...,\n}
        {
            \def \angle {360/\n*(\s - 1)}
            \coordinate (s) at ([shift=({\angle}:\rad)]v);

            \draw (v) -- (s);
            \filldraw (s) circle (1pt);
        }
        \draw (v) circle (\rad);
        \filldraw (v) circle (1pt);
\end{tikzpicture}%
