diff --git a/documents/GeoTopo/GeoTopo.pdf b/documents/GeoTopo/GeoTopo.pdf
index 5612df2..ea5418a 100644
Binary files a/documents/GeoTopo/GeoTopo.pdf and b/documents/GeoTopo/GeoTopo.pdf differ
diff --git a/documents/GeoTopo/Kapitel4.tex b/documents/GeoTopo/Kapitel4.tex
index 8fd4bdb..bc03335 100644
--- a/documents/GeoTopo/Kapitel4.tex
+++ b/documents/GeoTopo/Kapitel4.tex
@@ -340,7 +340,8 @@ aufgestellt.
 
 \begin{figure}
     \centering
-    \includegraphics[width=0.5\linewidth, keepaspectratio]{figures/todo/bild-6.jpg}
+    %\input{figures/geometry-6.tex}
+    \includegraphics[width=0.5\linewidth, keepaspectratio]{figures/geometry-6.pdf}
     \caption{TODO}
     \label{fig:bild-6}
 \end{figure}
@@ -360,7 +361,8 @@ aufgestellt.
 
     \begin{figure}
         \centering
-        \includegraphics[width=0.5\linewidth, keepaspectratio]{figures/todo/bild-7.jpg}
+        %\input{figures/geometry-7.tex}
+        \includegraphics[width=0.5\linewidth, keepaspectratio]{figures/geometry-7.pdf}
         \caption{TODO}
         \label{fig:bild-6}
     \end{figure}
diff --git a/documents/GeoTopo/figures/geometry-7.tex b/documents/GeoTopo/figures/geometry-7.tex
new file mode 100644
index 0000000..887e53d
--- /dev/null
+++ b/documents/GeoTopo/figures/geometry-7.tex
@@ -0,0 +1,22 @@
+\usetkzobj{all}
+\begin{tikzpicture}
+    \tkzSetUpPoint[shape=circle,size=10,color=black,fill=black]
+    \tkzSetUpLine[line width=1]
+    \tkzDefPoints{0/0/Q, 2/0/P, 1/2/R}
+
+
+    \pgfmathsetmacro{\firstAngle}{0}
+    \pgfmathsetmacro{\secondAngle}{-120}
+    \path[draw,red, fill=red!40] (Q) -- ++(\firstAngle:.4) arc[start angle=\firstAngle, delta angle=\secondAngle,radius=.4];
+
+    \tkzMarkAngle[arc=l,size=0.8cm,color=green,fill=green!20](Q,R,P)
+    \path[draw] ++(-50:.2) node[rotate=-50] {$\alpha$};
+    \node at (1,1.5) {$\beta$};
+    \tkzDrawLine(Q,P)
+    \tkzDrawLine(Q,R)
+    \tkzDrawLine(P,R)
+    \tkzDrawPoints(P,Q,R)
+    \tkzLabelPoint[below left](P){$P$}
+    \tkzLabelPoint[above left](Q){$Q$}
+    \tkzLabelPoint[above=0.2cm](R){$R$}
+\end{tikzpicture}
diff --git a/documents/GeoTopo/figures/todo/bild-6.jpg b/documents/GeoTopo/figures/todo/bild-6.jpg
deleted file mode 100644
index 27ee41d..0000000
Binary files a/documents/GeoTopo/figures/todo/bild-6.jpg and /dev/null differ
diff --git a/documents/GeoTopo/figures/todo/bild-7.jpg b/documents/GeoTopo/figures/todo/bild-7.jpg
deleted file mode 100644
index 57a8988..0000000
Binary files a/documents/GeoTopo/figures/todo/bild-7.jpg and /dev/null differ
diff --git a/tikz/geometry-7/Makefile b/tikz/geometry-7/Makefile
new file mode 100644
index 0000000..3636f84
--- /dev/null
+++ b/tikz/geometry-7/Makefile
@@ -0,0 +1,31 @@
+SOURCE  = geometry-7
+DELAY   = 80
+DENSITY = 300
+WIDTH   = 512
+
+make:
+	pdflatex $(SOURCE).tex -output-format=pdf
+	make clean
+
+clean:
+	rm -rf  $(TARGET) *.class *.html *.log *.aux *.data *.gnuplot
+
+gif:
+	pdfcrop $(SOURCE).pdf
+	convert -verbose -delay $(DELAY) -loop 0 -density $(DENSITY) $(SOURCE)-crop.pdf $(SOURCE).gif
+	make clean
+
+png:
+	make
+	make svg
+	inkscape $(SOURCE).svg -w $(WIDTH) --export-png=$(SOURCE).png
+
+transparentGif:
+	convert $(SOURCE).pdf -transparent white result.gif
+	make clean
+
+svg:
+	#inkscape $(SOURCE).pdf --export-plain-svg=$(SOURCE).svg
+	pdf2svg $(SOURCE).pdf $(SOURCE).svg
+	# Necessary, as pdf2svg does not always create valid svgs:
+	inkscape $(SOURCE).svg --export-plain-svg=$(SOURCE).svg
diff --git a/tikz/geometry-7/Readme.md b/tikz/geometry-7/Readme.md
new file mode 100644
index 0000000..7113d8f
--- /dev/null
+++ b/tikz/geometry-7/Readme.md
@@ -0,0 +1,3 @@
+Compiled example
+----------------
+![Example](geometry-7.png)
diff --git a/tikz/geometry-7/geometry-7.png b/tikz/geometry-7/geometry-7.png
new file mode 100644
index 0000000..8ba0148
Binary files /dev/null and b/tikz/geometry-7/geometry-7.png differ
diff --git a/tikz/geometry-7/geometry-7.tex b/tikz/geometry-7/geometry-7.tex
new file mode 100644
index 0000000..1519f9d
--- /dev/null
+++ b/tikz/geometry-7/geometry-7.tex
@@ -0,0 +1,27 @@
+\documentclass[varwidth=true, border=2pt]{standalone}
+\usepackage{tkz-euclide}
+
+\begin{document}
+\usetkzobj{all}
+\begin{tikzpicture}
+    \tkzSetUpPoint[shape=circle,size=10,color=black,fill=black]
+    \tkzSetUpLine[line width=1]
+    \tkzDefPoints{0/0/Q, 2/0/P, 1/2/R}
+
+
+    \pgfmathsetmacro{\firstAngle}{0}
+    \pgfmathsetmacro{\secondAngle}{-120}
+    \path[draw,red, fill=red!40] (Q) -- ++(\firstAngle:.4) arc[start angle=\firstAngle, delta angle=\secondAngle,radius=.4];
+
+    \tkzMarkAngle[arc=l,size=0.8cm,color=green,fill=green!20](Q,R,P)
+    \path[draw] ++(-50:.2) node[rotate=-50] {$\alpha$};
+    \node at (1,1.5) {$\beta$};
+    \tkzDrawLine(Q,P)
+    \tkzDrawLine(Q,R)
+    \tkzDrawLine(P,R)
+    \tkzDrawPoints(P,Q,R)
+    \tkzLabelPoint[below left](P){$P$}
+    \tkzLabelPoint[above left](Q){$Q$}
+    \tkzLabelPoint[above=0.2cm](R){$R$}
+\end{tikzpicture}
+\end{document}