documentclass[border=1.2cm]{standalone}
usepackage{tkz-euclide}
usetikzlibrary{calc}
begin{document}

\begin{tikzpicture}
    \tkzDefPoint(0,0){O}
    \tkzDefPoint(0:4){A}
    \tkzDefPoint(60:4){B}
    \tkzDefPoint(120:4){C}
    \tkzDefPoint(180:4){D}
    \tkzDefPoint(240:4){E}
    \tkzDefPoint(300:4){F}
    \filldraw[blue](B) arc[start angle=120,end angle=240,radius=4cm]--(F)arc[start angle=0,end angle=120,radius=4cm]--(D) arc[start angle=240,end angle=360,radius=4cm] ;
    
    \filldraw[blue](A) arc[start angle=60,end angle=180,radius=4cm]--(E) arc[start angle=-60,end angle=60,radius=4cm]--(C)  arc[start angle=180,end angle=300,radius=4cm];
%    \tkzDrawPoints(O,A,B,C,D,E,F)
\end{tikzpicture}

end{document}