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https://github.com/MartinThoma/LaTeX-examples.git
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26 lines
895 B
TeX
26 lines
895 B
TeX
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\begin{tikzpicture}
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\tkzSetUpPoint[shape=circle,size=10,color=black,fill=black]
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\tkzSetUpLine[line width=1]
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\tkzDefPoints{0/0/A, 4/0/B, -2/3/C}
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\tkzDefLine[orthogonal=through A,/tikz/overlay](B,C) \tkzGetPoint{helper}
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\tkzInterLL(B,C)(A,helper) \tkzGetPoint{La}
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\tkzMarkAngle[arc=l,size=0.4cm,color=red,fill=red!20](A,La,B)
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\tkzLabelAngle[pos=0.25](A,La,B){$\cdot$}
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\tkzDrawPolygon(A,B,C)
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\node at ($(A)+(-0.47,-0.2)$){$A$};
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\node at ($(B)+(0.35,-0.2)$) {$B$}; % \tkzLabelPoint[below](B){$B$} is not accurate enough
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\node at ($(C)+(0.05,0.3)$) {$C$};
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\node[green] at ($(La)+(-0.4,-0.1)$) {$L_A$};
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\tkzDrawSegments[red](A,La)
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\tkzDrawSegments[blue](B,C)
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\tkzLabelSegment[right,red](A,La){$h_a$}
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\tkzLabelSegment[above,blue](B,C){$c$}
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\tkzDrawPoints(A,B,C)
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\tkzDrawPoints[color=green,fill=green](La)
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\end{tikzpicture}
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