% Diagram by nilrem for PGDP project: Plane Geometry by G.A. Wentworth
% ***  Uses  epic  package   ***
% 121aa300.tex
% Pt.300. Fig.a.   (21.7,12.8 )
\PGset[0.8em]
\begin{picture}    (21.7,12.8 )
\drawline     ( 0.9  , 1.75  )(20.9  , 1.75  ) %A(HMK)B
\dashline[80]{0.4}(10.9  , 1.75  )(10.9  ,12.1   ) %M(O)C
\qbezier[40]  ( 2.369, 3.569 )( 5.903, 0.035 )(10.9  , 0.035 ) %left  lower arc
\qbezier[40]  (10.9  , 0.035 )(15.897, 0.035 )(19.431, 3.569 ) %right lower arc
%\dashline{0.2}( 9.615,10     )(10.9  , 9.083 )(12.31 , 7.607 ) %H arc @ O
%\dashline{0.2}( 9.567, 7.706 )(10.9  , 9.083 )(12.631,10.25  ) %K arc @ O
\dottedline[.]{0.4}( 9.615,10     )(10.9  , 9.083 )(12.31 , 7.607 ) %H arc @ O
\dottedline[.]{0.4}( 9.567, 7.706 )(10.9  , 9.083 )(12.631,10.25  ) %K arc @ O
\put(  0.1 ,  1.4 ){$\scriptstyle A$}   %A
\put( 20.9 ,  1.4 ){$\scriptstyle B$}   %B
\put( 10.6 , 12.15){$\scriptstyle C$}   %C
\put(  4   ,  0.8 ){$\scriptstyle H$}   %H
\put( 16.9 ,  0.8 ){$\scriptstyle K$}   %K
\put( 10.4 ,  0.8 ){$\scriptstyle M$}   %M
\put( 11.4 ,  8.7 ){$\scriptstyle O$}   %O
\end{picture}
\PGrestore