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

% Ex. No. 90 (Section 10.9 : TikZ Controls \tkzcname{pgfinterruptboundingbox} and \tkzcname{endpgfinterruptboundingbox})

\begin{tikzpicture}
\tkzDefPoint(0,5){A}\tkzDefPoint(5,4){B}
\tkzDefPoint(0,0){C}\tkzDefPoint(5,1){D}
\pgfinterruptboundingbox
   \tkzInterLL(A,B)(C,D)\tkzGetPoint{I}
\endpgfinterruptboundingbox
\tkzClipBB
   \tkzDrawCircle(I,B)
\tkzDrawSegments(A,B C,D A,C)
\end{tikzpicture}

\end{document}