Lower Left Triangle

Lower Left Triangle at U+25FA is a solid right-triangle symbol whose filled area occupies the lower-left half of a square cell. It belongs to the Geometric Shapes block and is used as a small graphic marker rather than as a letter or mathematical operator. Its most practical use is in text-based diagrams, terminal interfaces, and compact UI mockups where simple geometric pieces build arrows, corners, tiles, or directional indicators. For example, ◺ can suggest a lower-left corner, a diagonal half-filled square, or one quadrant of a blocky mosaic when paired with related triangle symbols. It also appears in plain-text charts, puzzle layouts, game maps, and decorative separators where authors want a visible triangular cell without relying on images. In mathematics or geometry prose it may be used informally to depict orientation, but it has no widely standardized technical meaning on its own, so surrounding labels or legends usually define what it represents.