# How to draw a triangle with a number in it?

I would like to draw some shapes (triangle, circle and both triangle and circle) with numbers in it, if this is possible

• Jun 27, 2017 at 14:17
• Jun 27, 2017 at 16:17

I am pretty sure that this post at texample.net might help you a lot. Here I report a little snippet that may help you getting started:

% Regular polygons
\documentclass{article}
\usepackage{tikz}

\begin{document}

\newdimen\R
\R=2cm

\begin{tikzpicture}
% Triangle
\draw (0:\R) \foreach \x in {120,240} {
-- (\x:\R)
} -- cycle (90:\R);
\node[align=center] {Triangle};

% Circle
\draw (5,0) circle (\R) node[align=center] {Circle};
\end{tikzpicture}

\end{document}


That produces the following output:

Of course, you can draw a circle around a triangle by simply indicating the same starting coordinate for both shapes. Just tinker with the parameters and try to find what best suits your needs.