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\begin{minipage}{0.55\linewidth}
Pravidelný čtyřboký jehlan má délku podstavné hrany $a$, stěny tvoří rovnostranné trojúhelníky. Bod $S$ je střed podstavy $ABCD$, bod $P$ je střed hrany $AV$. Určete odchylku mezi
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\hfill
\begin{minipage}{0.4\linewidth}
\obrMsr[x=3cm,y=3cm,z=0.3cm]{-1}2{-1}2
{
\footnotesize
\pgfmathsetmacro{\cubex}{1}
\pgfmathsetmacro{\cubey}{1}
\pgfmathsetmacro{\cubez}{2}
\coordinate (A) at (0,0,0);
\coordinate (B) at (\cubex,0,0);
\coordinate (C) at (\cubex.2,0,\cubez);
\coordinate (D) at (0.2,0,\cubez);
\coordinate (V) at (0.6,0.7,1);
\coordinate (P) at ($(A)!0.5!(V)$);
\draw[thick,dashed] (A) -- (D) node [yshift=4pt,xshift=-6pt]{$D$} -- (C) node [yshift=-5pt,xshift=5pt]{$C$};
\draw[dashed] (A) -- (C);
\draw[dashed] (B) -- (D);
\draw (0.6,0,1) node [below,xshift=-2pt,yshift=1pt]{$S$};
\draw[thick] (A) node [yshift=-5pt,xshift=-5pt]{$A$} -- (B) node [yshift=-6pt,xshift=3pt]{$B$} --(C);
\draw[thick] (A) -- (V) node [above]{$V$};
\draw[thick] (B) -- (V);
\draw[thick] (C) -- (V);
\draw[thick,dashed] (D) -- (V);
\draw[dashed] (0.6,0,1) -- (V);
\begin{scope}[thick]
\obrKrizek[2pt]{P}{above left}{P}
\end{scope}
}
\end{minipage}