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Geometry Symbols
Explore our complete math symbols list and interactive keyboard to lookup meanings, LaTeX codes, and UTF-8 characters for geometry symbols. Notations for angles, perpendicularity, parallelism, congruence, similarity, degrees, triangles, and vectors.
Geometry Symbols Reference Table
| Action | Symbol | Name | Meaning | Example | LaTeX | Unicode |
|---|---|---|---|---|---|---|
| ∠ | Angle | Denotes a geometric angle formed by two rays sharing a common vertex. | ∠ABC = 90° | \angle | U+2220 | |
| ∡ | Measured Angle | Refers specifically to the numerical measure or arc of an angle. | ∡A = 45° | \measuredangle | U+2221 | |
| ⊥ | Perpendicular | Indicates that two lines, rays, or vectors intersect at right angles (90°). | AB ⊥ CD | \perp | U+22A5 | |
| ∥ | Parallel | Indicates that two lines or planes lie in the same plane and never intersect. | L₁ ∥ L₂ | \parallel | U+2225 | |
| ∦ | Not Parallel | Indicates that two lines or vectors are not parallel. | AB ∦ CD | \nparallel | U+2226 | |
| ≅ | Congruent To | Geometric figures having identical size and shape. | △ABC ≅ △DEF | \cong | U+2245 | |
| ∼ | Similar To | Geometric figures having identical shapes and proportional corresponding sides. | △ABC ∼ △XYZ | \sim | U+223C | |
| △ | Triangle | Denotes a geometric triangle polygon with 3 sides and 3 vertices. | △ABC | \triangle | U+25B3 | |
| ° | Degree Sign | A unit of angular measurement equal to 1/360 of a complete circle. | 90° = π/2 radians | ^\circ | U+00B0 | |
| ⌒ | Arc | A segment of a curve or perimeter of a circle. | ⌒AB = 45° | \frown | U+2312 | |
| → | Ray / Vector Arrow | Denotes a directed vector or geometric ray extending indefinitely in one direction. | vec(AB) = B − A | \vec{v} \text{ or } \to | U+2192 |