Use the cross product to find the components of the unit vector
$\hat n$ perpendicular to the plane shown in the figure below, i.e.~
the plane joining the points $\{(1,0,0),(0,1,0),(0,0,1)\}$.

%/*
\bigskip
\centerline{\includegraphics[height=2in]{\TOP Figures/vftriangle}}
%*/

%*{{homework:figures:vftriangle.png?200|Figure: a plane}}