Code point
U+2A39
Glyph appearance depends on your fonts.
U+2A39
SmU+2A39 PLUS SIGN IN TRIANGLE is a Unicode 16.0.0 character in the Math Symbol category. It belongs to the Supplemental Mathematical Operators block.
Choose the representation you need, then copy its value.
U+2A39
10809
⨹
⨹
⨹
E2 A8 B9
2A39
00002A39
%E2%A8%B9
\u2A39
\u2A39
\u2A39
\2A39