Code point
U+25E2
Glyph appearance depends on your fonts.
U+25E2
SoU+25E2 BLACK LOWER RIGHT TRIANGLE is a Unicode 16.0.0 character in the Other Symbol category. It belongs to the Geometric Shapes block.
Choose the representation you need, then copy its value.
U+25E2
9698
◢
◢
E2 97 A2
25E2
000025E2
%E2%97%A2
\u25E2
\u25E2
\u25E2
\25E2