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\input{preamble-standalone.ltx}
\begin{document}
% Ex. No. 46 (Section 9.7.1 : Inversion of points)
\begin{tikzpicture}[scale=1.5]
\tkzDefPoint(0,0){O}
\tkzDefPoint(1,0){A}
\tkzDrawCircle(O,A)
\tkzDefPoint(-1.5,-1.5){z1}
\tkzDefPoint(0.35,0){z2}
\tkzDrawPoints[color=black,
fill=red,size=4](O,z1,z2)
\tkzDefPointBy[inversion =%
center O through A](z1)
\tkzGetPoint{Z1}
\tkzDefPointBy[inversion =%
center O through A](z2)
\tkzGetPoint{Z2}
\tkzDrawPoints[color=black,
fill=red,size=4](Z1,Z2)
\tkzDrawSegments(z1,Z1 z2,Z2)
\tkzLabelPoints(O,A,z1,z2,Z1,Z2)
\end{tikzpicture}
\end{document}
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