Triangle Symbol △

Triangle Symbol uses △, U+25B3 WHITE UP-POINTING TRIANGLE. It is an outlined geometric character used in plain-text geometry, legends, map keys, ranking markers, and diagram labels. The character differs from Greek capital delta Δ, black triangle ▲, warning sign ⚠, and directional arrows. Those forms may look related but carry different code points and purposes. A legend or equation should use the symbol required by its own convention. In geometry, △ABC can label a triangle, although structured math markup may be better in formal documents. In an interface or map key, the text beside △ must state what the marker means. Font design changes the outline thickness, proportions, and alignment. If exact geometry is important, scalable graphics or drawing tools may be more appropriate than a font character. Unicode and accessibility references support the encoded identity and labeled use. The page does not merge triangle symbolism, warning signs, or tattoo designs into this URL. Reviewed examples for Triangle Symbol are △ABC, △ = triangle marker, Point set △, Legend: △ station, and Outline icon △. For Triangle Symbol, they cover geometry notes, diagram legends, map keys, ranking markers, and plain-text layouts and give editors concrete strings for copy testing instead of relying on an isolated glyph. During QA for Triangle Symbol, preserve U+25B3, apply these checks—In geometry notes, define △ as Triangle Symbol before relying on the symbol alone. For diagram legends, preserve the full encoded sequence U+25B3; do not drop combining marks, superscripts, or component letters. Filled triangles, warning signs, delta letters, and inverted triangles have separate meanings and encodings.—and verify the result against Unicode, WHATWG HTML, and W3C/WCAG. Useful lookup names retained specifically for Triangle Symbol include Triangle Symbol, triangle symbol, WHITE UP-POINTING TRIANGLE, and Black up-pointing triangle.