\documentclass[10pt]{article}
\usepackage{pgfplots}
\pgfplotsset{compat=1.15}
\usepackage{mathrsfs}
\usetikzlibrary{arrows}
\pagestyle{empty}
\newcommand{\degre}{\ensuremath{^\circ}}
\begin{document}
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\definecolor{ffffqq}{rgb}{1,1,0}
\definecolor{ududff}{rgb}{0.30196078431372547,0.30196078431372547,1}
\begin{tikzpicture}[line cap=round,line join=round,>=triangle 45,x=1cm,y=1cm]
\begin{axis}[
x=1cm,y=1cm,
axis lines=middle,
xmin=-1.3956612862962816,
xmax=12.890463549475577,
ymin=-1.556356965486549,
ymax=5.616468212473904,
xtick={-1,-0.5,...,12.5},
ytick={-1.5,-1,...,5.5},]
\clip(-1.3956612862962816,-1.556356965486549) rectangle (12.890463549475577,5.616468212473904);
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\fill[line width=2pt,color=ffffqq,fill=ffffqq,fill opacity=0.1] (8,3) -- (0,0) -- (3,3) -- cycle;
\draw [shift={(3,3)},line width=2pt,color=qqffqq,fill=qqffqq,fill opacity=0.1] (0,0) -- (180:0.3720345009315588) arc (180:225:0.3720345009315588) -- cycle;
\draw[line width=2pt,color=qqffqq,fill=qqffqq,fill opacity=0.1] (0,2.736931881555942) -- (0.2630681184440582,2.736931881555942) -- (0.26306811844405814,3) -- (0,3) -- cycle; 
\draw [shift={(0,0)},line width=2pt,color=qqffqq,fill=qqffqq,fill opacity=0.1] (0,0) -- (45:0.3720345009315588) arc (45:90:0.3720345009315588) -- cycle;
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\draw [line width=2pt,color=ffffqq] (0,0)-- (0,3);
\draw [line width=2pt,color=ffffqq] (0,3)-- (3,3);
\draw [line width=2pt,color=ffffqq] (3,3)-- (0,0);
\draw [line width=2pt,color=ffffqq] (8,3)-- (0,0);
\draw [line width=2pt,color=ffffqq] (0,0)-- (3,3);
\draw [line width=2pt,color=ffffqq] (3,3)-- (8,3);
\draw (1.0151222797402195,3.2800915466237144) node[anchor=north west] {500m};
\draw (5.18934938019231,3.5777191473689616) node[anchor=north west] {$\mathit{x^{a}}$};
\draw (3.902110006969116,1.4571224920590768) node[anchor=north west] {?};
\draw (2.0196154322554283,1.9779707933632589) node[anchor=north west] {?};
\begin{scriptsize}
\draw [fill=ududff] (0,0) circle (2.5pt);
\draw[color=ududff] (0.09247671742995373,0.2405696740128797) node {$A$};
\draw [fill=ududff] (0,3) circle (2.5pt);
\draw[color=ududff] (0.09247671742995373,3.239167751521243) node {$B$};
\draw [fill=ududff] (3,3) circle (2.5pt);
\draw[color=ududff] (3.0910747949383177,3.239167751521243) node {$C$};
\draw [fill=ududff] (8,3) circle (2.5pt);
\draw[color=ududff] (8.091218487458468,3.239167751521243) node {$D$};
\draw[color=qqffqq] (3.48543136592577,3.053150501055464) node {$\alpha = 45\textrm{\degre}$};
\draw[color=qqffqq] (0.7844608891626531,2.978743600869152) node {$\beta = 90\textrm{\degre}$};
\draw[color=qqffqq] (0.7695795091253907,0.337298644255085) node {$\gamma = 45\textrm{\degre}$};
\draw[color=qqffqq] (1.0523257298333755,0.25545105405014207) node {$\delta = 24.44\textrm{\degre}$};
\draw[color=qqffqq] (8.768321279153906,3.097794641167251) node {$\epsilon = 20.56\textrm{\degre}$};
\end{scriptsize}
\end{axis}
\end{tikzpicture}
\end{document}