\documentclass[10pt]{article} \usepackage{pgfplots} \pgfplotsset{compat=1.15} \usepackage{mathrsfs} \usetikzlibrary{arrows} \pagestyle{empty} \begin{document} \definecolor{zzttqq}{rgb}{0.6,0.2,0} \definecolor{ududff}{rgb}{0.30196078431372547,0.30196078431372547,1} \begin{tikzpicture}[line cap=round,line join=round,>=triangle 45,x=1cm,y=1cm] \clip(-25.86297658536588,-15.606301463414665) rectangle (28.987208780487837,11.9330624390244); \fill[line width=2pt,color=zzttqq,fill=zzttqq,fill opacity=0.10000000149011612] (-12.036159024390257,-3.2650097560975726) -- (-11.89332,5.333899512195123) -- (-1.4660712195121963,5.391035121951221) -- cycle; \fill[line width=2pt,color=zzttqq,fill=zzttqq,fill opacity=0.10000000149011612] (7.904168780487814,5.505306341463416) -- (-12.036159024390257,-3.2650097560975726) -- (-1.4660712195121963,5.391035121951221) -- cycle; \draw [line width=2pt,color=zzttqq] (-12.036159024390257,-3.2650097560975726)-- (-11.89332,5.333899512195123); \draw [line width=2pt,color=zzttqq] (-11.89332,5.333899512195123)-- (-1.4660712195121963,5.391035121951221); \draw [line width=2pt,color=zzttqq] (-1.4660712195121963,5.391035121951221)-- (-12.036159024390257,-3.2650097560975726); \draw [line width=2pt,color=zzttqq] (7.904168780487814,5.505306341463416)-- (-12.036159024390257,-3.2650097560975726); \draw [line width=2pt,color=zzttqq] (-12.036159024390257,-3.2650097560975726)-- (-1.4660712195121963,5.391035121951221); \draw [line width=2pt,color=zzttqq] (-1.4660712195121963,5.391035121951221)-- (7.904168780487814,5.505306341463416); \begin{scriptsize} \draw [fill=ududff] (-12.036159024390257,-3.2650097560975726) circle (2.5pt); \draw[color=ududff] (-11.807616585365867,-2.650801951219523) node {$A$}; \draw [fill=ududff] (-11.89332,5.333899512195123) circle (2.5pt); \draw[color=ududff] (-11.664777560975622,5.948107317073172) node {$B$}; \draw [fill=ududff] (-1.4660712195121963,5.391035121951221) circle (2.5pt); \draw[color=ududff] (-1.237528780487806,6.00524292682927) node {$C$}; \draw [fill=ududff] (7.904168780487814,5.505306341463416) circle (2.5pt); \draw[color=ududff] (8.132711219512204,6.119514146341466) node {$D$}; \end{scriptsize} \end{tikzpicture} \end{document}