How to draw a triangle with a number in it?

Question

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

See also https://tex.stackexchange.com/questions/144193/how-do-i-put-a-die-roll-at-the-top-of-each-page — John Kormylo, Jun 27 '17 at 14:17
Other related links: Good way to make \textcircled numbers?, How to place a textnode at the center of a drawn rectangle, Numbers inside triangles — Bobyandbob, Jun 27 '17 at 16:17

score 3 · Answer 1 · answered Jun 27 '17 at 14:40

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}

% Radius of regular polygons
\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.

How to draw a triangle with a number in it?

1 Answers1