量角器的问题

Question

如何设置量角器来测量A,C,B角度？

代码

\documentclass[12pt,a4paper]{article}
\usepackage{tikz,tkz-euclide}
\usetkzobj{all}

\begin{document}
\begin{tikzpicture}
\tkzDefPoints{0/0/A, 6/0/B, 3/3/C}
\tkzDrawPolygon[draw=red,very thick,fill=red,fill opacity=.4](A,B,C)
\tkzDrawPoints(A,B,C)
\tkzLabelPoints(A,B,C)
%\tkzDrawCircle[in](A,B,C)
\tkzDrawCircle[circum](A,B,C)
\tkzProtractor[with=half](C,B)
\end{tikzpicture}
\end{document}

它有什么问题？

Answer 1

像这样？我不明白你想测量哪个角度。

\documentclass[12pt,a4paper]{article}
\usepackage{tikz,tkz-euclide}
\usetkzobj{all}

\begin{document}
\begin{tikzpicture}
\tkzDefPoints{0/0/A, 6/0/B, 3/3/C}
\tkzDrawPolygon[draw=red,very thick,fill=red,fill opacity=.4](A,B,C)
\tkzDrawPoints(A,B,C)
\tkzLabelPoints(A,B,C)
%\tkzDrawCircle[in](A,B,C)
\tkzDrawCircle[circum](A,B,C)
\tkzProtractor[with=half](A,B)
\end{tikzpicture}
\end{document}

更新：

如果要测量直角，请在选项中添加return（或rotate） ：proactor

\documentclass[12pt,a4paper]{article}
\usepackage{tikz,tkz-euclide}
\usetkzobj{all}

\begin{document}
\begin{tikzpicture}
\tkzDefPoints{0/0/A, 6/0/B, 3/3/C}
\tkzDrawPolygon[draw=red,very thick,fill=red,fill opacity=.4](A,B,C)
\tkzDrawPoints(A,B,C)
\tkzLabelPoints(A,B,C)
%\tkzDrawCircle[in](A,B,C)
\tkzDrawCircle[circum](A,B,C)
\tkzProtractor[with=half, return](C,B)
\end{tikzpicture}
\end{document}