\documentclass{scrartcl} \usepackage[utf8]{inputenc} \usepackage[upright]{fourier} \usepackage[usenames,dvipsnames]{xcolor} \usepackage{fullpage,amsmath,tkz-euclide} \definecolor{fondpaille}{cmyk}{0,0,0.1,0} \pagecolor{fondpaille} \color{Maroon} \tkzSetUpColors[background=fondpaille,text=Maroon] \thispagestyle{empty} \begin{document} \begin{tikzpicture} \tkzInit[xmin=-6,xmax=6,ymin=-6,ymax=6] \tkzClip \tkzDefPoint(0,0){O} \tkzDefPoint(5,0){A} \tkzDefPoint(0,5){B} \tkzDefPoint(-5,0){C} \tkzDefPoint(0,-5){D} \tkzDefMidPoint(A,O) \tkzGetPoint{I} \tkzInterLC(I,B)(I,A) \tkzGetPoints{F}{E} \tkzDrawArcAngles[color=gray,style=dashed](B,E)(180,360) \tkzDrawArcAngles[color=gray,style=dashed](B,F)(220,340) \tkzInterCC(O,C)(B,E) \tkzGetPoints{D3}{D2} \tkzInterCC(O,C)(B,F) \tkzGetPoints{D4}{D1} \tkzDrawLine[color=gray,add=.5 and .5](B,I) \tkzDrawCircle(O,A) \tkzDrawCircle[diameter](O,A) \tkzDrawSegments[color=gray](B,D C,A) \tkzDrawPolygon[color=red](D,D1,D2,D3,D4) \tkzDrawPoints(E,F,I,D1,D2,D4,D3) \tkzLabelPoints(A,B,C,D,O,I,E,F,D1,D2,D4,D3) \end{tikzpicture} \end{document}