Code point
U+29E9
Glyph appearance depends on your fonts.
U+29E9
SmU+29E9 DOWN-POINTING TRIANGLE WITH RIGHT HALF BLACK is a Unicode 16.0.0 character in the Math Symbol category. It belongs to the Miscellaneous Mathematical Symbols-B block.
Choose the representation you need, then copy its value.
U+29E9
10729
⧩
⧩
E2 A7 A9
29E9
000029E9
%E2%A7%A9
\u29E9
\u29E9
\u29E9
\29E9