\begin{ccRefFunction}{area}

\ccHtmlNoLinks
\ccFunction{Kernel::FT area(const Point_2<Kernel>& p,
                            const Point_2<Kernel>& q,
                            const Point_2<Kernel>& r);}
{returns the signed area of the triangle defined by the points $p$,
 $q$ and $r$. }
       
\end{ccRefFunction}