# How would I say two triangles are congruent? [duplicate]

There is a sign to signify two triangles are congruent. It looks like this: ≅. How would I do this in latex?

## marked as duplicate by Werner, Au101, Stefan Pinnow, user36296, Phelype OleinikJan 22 at 19:45

• \usepackage{amssymb} and then \cong... – Werner Jan 22 at 18:52

\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage{amssymb}
\begin{document}
\section{Introduction}
$\triangle A \cong \triangle B$
\end{document}


Output:

Use \usepackage{amssymb} package and \cong command.

I strongly refer you to consult with List of LaTeX mathematical symbols link. It will help you a lot.

• Why do you need to include \usepackage[utf8]{inputenc}? – Werner Jan 22 at 19:10
• Oh that not necessary for your problem. – Encipher Jan 22 at 19:19