\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}