Example: Parallel lines and related angles

Published 2006-11-08 | Author: The TikZ and PGF manual

This example is from the Part III title page of the TikZ and PGF manual.

Author: Till Tantau
Source: The PGF/TikZ manual

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Parallel lines and related angles

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% Author: Till Tantau
% Source: The PGF/TikZ manual

  \draw[fill=yellow] (0,0) -- (60:.75cm) arc (60:180:.75cm);
  \draw(120:0.4cm) node {$\alpha$};

  \draw[fill=green!30] (0,0) -- (right:.75cm) arc (0:60:.75cm);
  \draw(30:0.5cm) node {$\beta$};

    \draw[fill=green!30] (0,0) -- (180:.75cm) arc (180:240:.75cm);
    \draw (30:-0.5cm) node {$\gamma$};

    \draw[fill=yellow] (0,0) -- (240:.75cm) arc (240:360:.75cm);
    \draw (-60:0.4cm) node {$\delta$};

    \draw (60:-1cm) node[fill=white] {$E$} -- (60:3cm) node[fill=white] {$F$};
    \draw[red]                   (-2,0) node[left] {$A$} -- (3,0) 
    \draw[blue,shift={(60:2cm)}] (-3,0) node[left] {$C$} -- (2,0) 
    node [right,text width=6cm,rounded corners,fill=red!20,inner sep=1ex]
      When we assume that $\color{red}AB$ and $\color{blue}CD$ are
      parallel, i.\,e., ${\color{red}AB} \mathbin{\|} \color{blue}CD$,
      then $\alpha = \delta$ and $\beta = \gamma$.



  • #1 Jessica, February 7, 2009 at 11:04 p.m.

    I don't get suplementary and complementary angles and even corressponding angles i have a test tomorrow

  • #2 Henenvineer, June 28, 2009 at 5 p.m.

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  • #3 pascal, May 31, 2010 at 5:30 p.m.

    Is there a way to have TikZ calculate the angles?

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