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weiteres Dreieck-Bild hinzugefügt
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9 changed files with 103 additions and 2 deletions
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@ -643,8 +643,15 @@ Der Flächeninhalt eines Dreiecks ist $\nicefrac{1}{2} \cdot \text{Grundseite} \
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\begin{figure}[htp]
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\centering
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\input{figures/triangle-4.tex}
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\caption{Flächenberechnung im Dreiecks}
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\subfloat[$\nicefrac{1}{2} \cdot |\overline{AB}| \cdot |h_c|$]{
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\resizebox{0.45\linewidth}{!}{\input{figures/triangle-5.tex}}
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\label{fig:cube}
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}%
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\subfloat[$\nicefrac{1}{2} \cdot |\overline{BC}| \cdot |h_a|$]{
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\resizebox{0.45\linewidth}{!}{\input{figures/triangle-4.tex}}
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\label{fig:s2}
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}%
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\caption{Flächenberechnung im Dreieck}
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\label{fig:flaechenberechnung-dreieck}
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\end{figure}
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26
documents/GeoTopo/figures/triangle-5.tex
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26
documents/GeoTopo/figures/triangle-5.tex
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@ -0,0 +1,26 @@
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\begin{tikzpicture}
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\tkzSetUpPoint[shape=circle,size=10,color=black,fill=black]
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\tkzSetUpLine[line width=1]
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\tkzDefPoints{0/0/A, 4/0/B, -2/3/C}
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\tkzDefLine[orthogonal=through C,/tikz/overlay](A,B) \tkzGetPoint{helper}
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\tkzInterLL(A,B)(C,helper) \tkzGetPoint{Lc}
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%\tkzMarkAngle[arc=l,size=0.4cm,color=red,fill=red!20](A,La,B)
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%\tkzLabelAngle[pos=0.25](A,La,B){$\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$};
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\node[green] at ($(Lc)+(-0.4,-0.1)$) {$L_C$};
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\tkzDrawSegments[red](C,Lc)
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\tkzDrawSegments[blue](A,B)
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\tkzDrawSegments[dashed](Lc,A)
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\tkzLabelSegment[right,red](C,Lc){$h_c$}
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\tkzLabelSegment[above,blue](A,B){$c$}
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\tkzDrawPoints(A,B,C)
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\tkzDrawPoints[color=green,fill=green](Lc)
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\end{tikzpicture}
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