How to Write the Triangle Symbol (△) in LaTeX

In LaTeX, you can write the triangle symbol (△) using the \triangle command.

The following examples show how to write the triangle symbol in LaTeX.

How to Write the Triangle Symbol in Text

We can use the \triangle command to write the triangle symbol in LaTeX document for text.

Suppose we want to write the triangle symbol in the text.

We can use the following LaTeX code to do so:

\documentclass{article}
\begin{document}

This is an example of using the triangle symbol \( \triangle ABC \) in a sentence.

\end{document}

Output: 👇️

This is an example of using the triangle symbol △ABC in a sentence.

In this example, we use the \triangle command to display the triangle symbol in the text.

How to Write the Triangle Symbol in Mathematical Expressions

For mathematical expressions, We can use the \triangle command to ensure proper formatting.

Suppose we would like to write mathematical expressions that contain the triangle symbol.

We can use the following LaTeX code to do so:

\documentclass{article}
\begin{document}

An inline mathematical expression: \( \triangle ABC \)

A displayed mathematical expression:
\[
\triangle ABC
\]

\end{document}

Output: 👇️

In this example, we use the \triangle command to denote the triangle symbol in both inline and displayed mathematical expressions.

Conclusion

We can use the \triangle command for both text and mathematical expressions. This ensures that the triangle symbol is properly formatted and displayed in LaTeX document.