% Tikz File 'mytikz.tex'
\documentclass{standalone}
\usepackage{tikz}
%\usetikzlibrary{...}
\begin{document}


\tikzset{every picture/.style={line width=0.75pt}} %set default line width to 0.75pt      


\begin{tikzpicture}[x=0.75pt,y=0.75pt,yscale=-1,xscale=1,scale=.75]
%uncomment if require: \path (0,300); %set diagram left start at 0, and has height of 300


%Shape: Polygon [id:ds5785953690716403] 
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%Straight Lines [id:da6883776272346582] 
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%Straight Lines [id:da5555885630242883] 
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%Shape: Boxed Line [id:dp9939991202153542] 
\draw    (110.99,149.82) -- (95.99,149.82) -- (82.99,149.82) ;
\draw [shift={(80.99,149.82)}, rotate = 360] [color={rgb, 255:red, 0; green, 0; blue, 0 }  ][line width=0.75]    (10.93,-3.29) .. controls (6.95,-1.4) and (3.31,-0.3) .. (0,0) .. controls (3.31,0.3) and (6.95,1.4) .. (10.93,3.29)   ;
%Shape: Boxed Line [id:dp5929741855758028] 
\draw    (26.46,56.38) -- (33.96,43.39) -- (40.46,32.13) ;
\draw [shift={(41.46,30.4)}, rotate = 120] [color={rgb, 255:red, 0; green, 0; blue, 0 }  ][line width=0.75]    (10.93,-3.29) .. controls (6.95,-1.4) and (3.31,-0.3) .. (0,0) .. controls (3.31,0.3) and (6.95,1.4) .. (10.93,3.29)   ;
%Shape: Boxed Line [id:dp5978020358345977] 
\draw    (103.89,56.65) -- (111.39,69.64) -- (117.89,80.9) ;
\draw [shift={(118.89,82.63)}, rotate = 240] [color={rgb, 255:red, 0; green, 0; blue, 0 }  ][line width=0.75]    (10.93,-3.29) .. controls (6.95,-1.4) and (3.31,-0.3) .. (0,0) .. controls (3.31,0.3) and (6.95,1.4) .. (10.93,3.29)   ;
%Shape: Boxed Line [id:dp7653141977189986] 
\draw    (34.11,131.58) -- (26.61,118.59) -- (20.11,107.33) ;
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% Text Node
\draw (95.99,153.22) node [anchor=north] [inner sep=0.75pt]    {$\delta $};
% Text Node
\draw (24.61,121.99) node [anchor=north east] [inner sep=0.75pt]    {$\beta $};
% Text Node
\draw (32.11,40.24) node [anchor=south east] [inner sep=0.75pt]    {$\gamma $};
% Text Node
\draw (113.39,66.24) node [anchor=south west] [inner sep=0.75pt]    {$\nu $};
\end{tikzpicture}

\end{document}