Something doesn't work?

The Num lock should always be enabled. If it is disabled when you are attempting an alt code, it may cause errors or unexpected results in some applications. For example, Alt+4 could be interpreted as Alt +, ← which causes the browser to go back if the Num lock is disabled.
If your laptop keyboard doesn't have a separate NumPad, you should hold FN button with Alt button while typing the code.
This method does not work for Linux system, but it is possible to use Unicode.

Triangle Symbol

The triangle is a three-sided geometric shape. Triangle has three sides and three corners. There are different types of triangles. A scalene triangle three sides are not equal and also the angles. The equilateral triangle which all the sides are equal and also the angles. An isosceles triangle has two sides equal in length and has two equal angles.

In Christianity, the triangle represents the holy trinity (father, son, and holy spirit). It has another meaning which is staging of the moon. In Celtic culture, the triangle is displayed in the form of the triquetra, triskelion as well as other trinity based on knotwork.

Greeks believe the triangle to be symbolic of a passage. The idea was that the combination of polarities would provide a new opening or doorway to higher wisdom.

How to use and type Triangle symbol code?

If your keyboard contains separate NumPad, you should be sure that it is enabled. If it is not, press the Num Lock key to activate it then press hold down the Alt key on the left side. Type the number that represents that character or the symbol you want to insert and then release the insert key.
For example, for the greek letter omega Ω press and hold Alt and the type 0234 and then release.
There is another method that works only for word documents. In this method, you should type the characters first then press Alt and X. For example ( 0234 + Alt + X for greek letter omega ).
If you have a keyboard that doesn't have NumPad here is what will work for you. Find the Function key ( FN ) then presses and hold the function key while holding press and release Num LK key; then release FN key. This method will activate the numeric keypad in your laptop.
Then do the same steps as in the previous example.
Notice that in IBM code you don't use 0 (Alt + 255 ) before the code which is different from the windows generator that requires to add 0 (Alt + 0255 ) before the code.

Table of Symbols and Codes

Symbol	Title / Description	Unicode	Code / HTML Code
⧊	Triangle With Dot Above	⧊	⧊
⧏	Left Triangle Beside Vertical Bar	⧏	⧏
△	White Up-pointing Triangle red	-#x25B3;
◥	Black Upper Right Triangle	◥	◥
◿	Lower Right Triangle	◿	◿
◮	Up-pointing Triangle With Right Half Black	◮	◮
⧋	Triangle With Underbar	⧋	⧋
▹	White Right-pointing Small Triangle	▹	▹
⧎	Right Triangle Above Left Triangle	⧎	⧎
⨞	Large Left Triangle Operator	⨞	⨞
▲	Black Up-pointing Triangle red	-#x25B2;
▲	Black Up-pointing Triangle	▲	▲
◂	Black Left-pointing Small Triangle	◂	◂
⧩	Down-pointing Triangle With Right Half Black	⧩	⧩
⧍	Triangle With Serifs At Bottom	⧍	⧍
◸	Upper Left Triangle	◸	◸
◁	White Left-pointing Triangle	◁	◁
▶	Black Right-pointing Triangle	▶	▶
⨨	Plus With Black Triangle	⨨	⨨
⟁	White Triangle Containing Small White Triangle	⟁	⟁
▾	Black Down-pointing Small Triangle	▾	▾
⨺	Minus In Triangle	⨺	⨺
◤	Black Upper Left Triangle	◤	◤
⛛	Heavy White Down-pointing Triangle	⛛	⛛
◃	White Left-pointing Small Triangle	◃	◃
⧨	Down-pointing Triangle With Left Half Black	⧨	⧨
⧌	S In Triangle	⧌	⧌
▷	White Right-pointing Triangle	▷	▷
▽	White Down-pointing Triangle	▽	▽
◣	Black Lower Left Triangle	◣	◣
▿	White Down-pointing Small Triangle	▿	▿
⨻	Multiplication In Triangle	⨻	⨻
⨹	Plus In Triangle	⨹	⨹
▼	Black Down-pointing Triangle	▼	▼
▸	Black Right-pointing Small Triangle	▸	▸
▵	White Up-pointing Small Triangle	▵	▵
◺	Lower Left Triangle	◺	◺
◭	Up-pointing Triangle With Left Half Black	◭	◭
◹	Upper Right Triangle	◹	◹
△	White Up-pointing Triangle	△	△
◀	Black Left-pointing Triangle	◀	◀
◬	White Up-pointing Triangle With Dot	◬	◬
◢	Black Lower Right Triangle	◢	◢
▴	Black Up-pointing Small Triangle	▴	▴
⧐	Vertical Bar Beside Right Triangle	⧐	⧐