2

I am trying to draw an angle in this TikZ picture but I just can't figure out how to do it right? I want to draw the angle so it is red and a random value

\documentclass[a4paper,10pt]{article}
\usepackage[utf8]{inputenc}
\usepackage[danish]{babel}
\usepackage{siunitx}
\sisetup{output-decimal-marker={,}}
\usepackage{amsmath}
\usepackage{graphicx}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{tikz}
\usepackage{fullpage}
\usepackage{multicol}
\setlength{\columnsep}{1cm}
\usepackage{tkz-euclide}

%opening
\title{Formelsamling}
\author{Daniel}


\begin{document}

\subsubsection{Cosinus, sinus og tangens}

\noindent\begin{minipage}[c]{0.5\textwidth}
\begin{tikzpicture}[scale=1.25]%,cap=round,>=latex]

\coordinate [label=left:$A$] (A) at (-1.5cm,-1.cm);
\coordinate [label=right:$C$] (C) at (1.5cm,-1.0cm);
\coordinate [label=above:$B$] (B) at (1.5cm,1.0cm);
\draw (A) -- node[sloped,above] {$Hypotonusen\ c=\num{2.0}$} (B) -- node[right] {$Hosliggende \ a=\num{1.5}$} (C) -- node[below] {$Modstende\ b=\num{1,8}$} (A);

\draw (1.25cm,-1.0cm) rectangle (1.5cm,-0.75cm);


\tkzMarkAngle[fill= orange,size=0.8cm,%
opacity=.4](B,A,O)
\tkzLabelAngle[pos = 0.6](B,A,O){$\alpha$}

\end{tikzpicture}
\end{document}
7

Use \usetkzobj{all} and it is (C,A,B) not (B,A,O).

\documentclass[a4paper,10pt]{article}
\usepackage[utf8]{inputenc}
\usepackage[danish]{babel}
\usepackage{siunitx}
\sisetup{output-decimal-marker={,}}
\usepackage{amsmath}
\usepackage{graphicx}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{tikz}
\usepackage{fullpage}
\usepackage{multicol}
\setlength{\columnsep}{1cm}
\usepackage{tkz-euclide}
\usetkzobj{all}

%opening
\title{Formelsamling}
\author{Daniel}


\begin{document}

\subsubsection{Cosinus, sinus og tangens}

\begin{tikzpicture}[scale=1.25]%,cap=round,>=latex]

\coordinate [label=left:$A$] (A) at (-1.5cm,-1.cm);
\coordinate [label=right:$C$] (C) at (1.5cm,-1.0cm);
\coordinate [label=above:$B$] (B) at (1.5cm,1.0cm);
\draw (A) -- node[sloped,above] {Hypotonusen $c=\num{2.0}$} (B) -- node[right] {Hosliggende $ a=\num{1.5}$} (C) -- node[below] {Modstende $b=\num{1,8}$} (A);

\draw (1.25cm,-1.0cm) rectangle (1.5cm,-0.75cm);


\tkzMarkAngle[fill= orange,size=0.8cm,opacity=.4](C,A,B)
\tkzLabelAngle[pos = 0.6](C,A,B){$\alpha$}

\end{tikzpicture}
\end{document}

enter image description here

  • And you forgot \end{minipage}. But I have removed the minipage as a whole. – user11232 Oct 27 '15 at 11:13

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.