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\input{preamble-standalone.ltx}
\begin{document}
% Ex. No. 211 (Section 29.2.12 : Three circles)
\begin{tikzpicture}[scale=1.5]
\tkzDefPoints{0/0/A,8/0/B,0/4/a,8/4/b,8/8/c}
\tkzDefTriangle[equilateral](A,B) \tkzGetPoint{C}
\tkzDrawPolygon(A,B,C)
\tkzDefSquare(A,B) \tkzGetPoints{D}{E}
\tkzClipBB
\tkzDefMidPoint(A,B) \tkzGetPoint{M}
\tkzDefMidPoint(B,C) \tkzGetPoint{N}
\tkzDefMidPoint(A,C) \tkzGetPoint{P}
\tkzDrawSemiCircle[gray,dashed](M,B)
\tkzDrawSemiCircle[gray,dashed](A,M)
\tkzDrawSemiCircle[gray,dashed](A,B)
\tkzDrawCircle[gray,dashed](B,A)
\tkzInterLL(A,N)(M,a) \tkzGetPoint{Ia}
\tkzDefPointBy[projection = onto A--B](Ia)
\tkzGetPoint{ha}
\tkzDrawCircle[gray](Ia,ha)
\tkzInterLL(B,P)(M,b) \tkzGetPoint{Ib}
\tkzDefPointBy[projection = onto A--B](Ib)
\tkzGetPoint{hb}
\tkzDrawCircle[gray](Ib,hb)
\tkzInterLL(A,c)(M,C) \tkzGetPoint{Ic}
\tkzDefPointBy[projection = onto A--C](Ic)
\tkzGetPoint{hc}
\tkzDrawCircle[gray](Ic,hc)
\tkzInterLL(A,Ia)(B,Ib) \tkzGetPoint{G}
\tkzDrawCircle[gray,dashed](G,Ia)
\tkzDrawPolySeg(A,E,D,B)
\tkzDrawPoints(A,B,C)
\tkzDrawPoints(G,Ia,Ib,Ic)
\tkzDrawSegments[gray,dashed](C,M A,N B,P M,a M,b A,a a,b b,B A,D Ia,ha)
\end{tikzpicture}
\end{document}
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