Winkel Geometric Shape
Warum passt sich der Winkelbogen unten links nicht automatisch an?
\documentclass[headheight=19pt]{scrartcl}
%------------------------------------------------------------------------------
\usepackage[utf8]{inputenc}
\usepackage[ngerman]{babel}
\usepackage{tikz}
\usetikzlibrary{quotes,babel,angles}
\usetikzlibrary[shapes.geometric] % ConTEXt when using Tik Z
%------------------------------------------------------------------------------
\tikzset{
winkel/.style={draw=gray,angle eccentricity=.6,angle radius=0.6cm},
mybox/.style={draw=gray,fill=white,align=left,text width=.9\linewidth}
}
radius=0.6cm}}
%------------------------------------------------------------------------------
\begin{document}
\begin{minipage}[t]{0.5\linewidth}
Blub. Der Winkel sieht nicht gut aus
\end{minipage}\hfill
\raisebox{\dimexpr \ht\strutbox-\totalheight}
{\begin{minipage}[t]{0.4\linewidth}
\begin{tikzpicture}[
auto,
mytrapez/.style={
trapezium,
draw,
trapezium left angle=20,
trapezium right angle=160
}
]
\node[
mytrapez,
minimum width=5cm,
minimum height=1cm
](Trapez){};
\foreach \placement/\anchor/\text in {%
below left/bottom left corner/A,
below right/bottom right corner/B,
above right/top right corner/C,
above left/top left corner/D%
}\coordinate[](\text)at(Trapez.\anchor);
\pic[pic text=$\alpha$, winkel]{angle=B--A--C};
\path(B)--node{$a$}(A);
\path(D)--node{}(C);
\path(A)--node{}(D);
\path(C)--node{$b$}(B);
\end{tikzpicture}
\end{minipage}}
\end{document}
