\input{preamble-standalone.ltx}
\begin{document}

% Ex. No. 154 (Section 19.2.4 : Cardioid)

\begin{tikzpicture}[scale=.5]
  \tkzDefPoint(0,0){O}
  \tkzDefPoint(2,0){A}
  \foreach \ang in {5,10,...,360}{%
     \tkzDefPoint(\ang:2){M}
     \tkzDrawCircle(M,A)
   }
\end{tikzpicture}

\end{document}