Home U+2200 to U+22FF Mathematical Operators
Glyph for U+2220
Source: Noto Sans Math

U+2220 Angle

U+2220 was added to Unicode in version 1.1 (1993). It belongs to the block U+2200 to U+22FF Mathematical Operators in the U+0000 to U+FFFF Basic Multilingual Plane.

This character is a Math Symbol and is commonly used, that is, in no specific script.

The glyph is not a composition. It has a Ambiguous East Asian Width. In bidirectional context it acts as Other Neutral and is mirrored. Its corresponding mirrored glyph is Glyph for U+29A3 Reversed Angle. The glyph can, under circumstances, be confused with 1 other glyphs. In text U+2220 behaves as Ambiguous (Alphabetic or Ideographic) regarding line breaks. It has type Other for sentence and Other for word breaks. The Grapheme Cluster Break is Any.

The CLDR project labels this character “angle” for use in screen reading software. It assigns additional tags, e.g. for search in emoji pickers: acute, angle.

The Wikipedia has the following information about this codepoint:

In Euclidean geometry, an angle is the figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex of the angle. Angles formed by two rays lie in the plane that contains the rays. Angles are also formed by the intersection of two planes. These are called dihedral angles. Two intersecting curves may also define an angle, which is the angle of the rays lying tangent to the respective curves at their point of intersection.

Angle is also used to designate the measure of an angle or of a rotation. This measure is the ratio of the length of a circular arc to its radius. In the case of a geometric angle, the arc is centered at the vertex and delimited by the sides. In the case of a rotation, the arc is centered at the center of the rotation and delimited by any other point and its image by the rotation.


System Representation
UTF-8 E2 88 A0
UTF-16 22 20
UTF-32 00 00 22 20
URL-Quoted %E2%88%A0
HTML hex reference ∠
Wrong windows-1252 Mojibake ∠
HTML named entity ∠
HTML named entity ∠
Encoding: EUC-KR (hex bytes) A1 D0
Encoding: JIS0208 (hex bytes) A2 DC
Encoding: JIS0208 (hex bytes) AD F7
LATEX \angle
Adobe Glyph List angle
digraph -V

Related Characters



Complete Record

Property Value
Age 1.1 (1993)
Unicode Name ANGLE
Unicode 1 Name
Block Mathematical Operators
General Category Math Symbol
Script Common
Bidirectional Category Other Neutral
Combining Class Not Reordered
Decomposition Type None
Decomposition Mapping Glyph for U+2220 Angle
Simple Lowercase Mapping Glyph for U+2220 Angle
Lowercase Mapping Glyph for U+2220 Angle
Simple Uppercase Mapping Glyph for U+2220 Angle
Uppercase Mapping Glyph for U+2220 Angle
Simple Titlecase Mapping Glyph for U+2220 Angle
Titlecase Mapping Glyph for U+2220 Angle
Case Folding Glyph for U+2220 Angle
ASCII Hex Digit
Bidi Control
Bidi Mirrored
Composition Exclusion
Case Ignorable
Changes When Casefolded
Changes When Casemapped
Changes When NFKC Casefolded
Changes When Lowercased
Changes When Titlecased
Changes When Uppercased
Full Composition Exclusion
Default Ignorable Code Point
Emoji Modifier Base
Emoji Component
Emoji Modifier
Emoji Presentation
Extended Pictographic
FC NFKC Closure Glyph for U+2220 Angle
Grapheme Cluster Break Any
Grapheme Base
Grapheme Extend
Grapheme Link
Hex Digit
ID Continue
ID Start
IDS Binary Operator
IDS Trinary Operator and
Indic Mantra Category
Indic Positional Category NA
Indic Syllabic Category Other
Jamo Short Name
Join Control
Logical Order Exception
Noncharacter Code Point
NFC Quick Check Yes
NFD Quick Check Yes
NFKC Casefold Glyph for U+2220 Angle
NFKC Quick Check Yes
NFKD Quick Check Yes
Other Alphabetic
Other Default Ignorable Code Point
Other Grapheme Extend
Other ID Continue
Other ID Start
Other Lowercase
Other Math
Other Uppercase
Prepended Concatenation Mark
Pattern Syntax
Pattern White Space
Quotation Mark
Regional Indicator
Sentence Break Other
Soft Dotted
Sentence Terminal
Terminal Punctuation
Unified Ideograph
Variation Selector
Word Break Other
White Space
XID Continue
XID Start
Expands On NFC
Expands On NFD
Expands On NFKC
Expands On NFKD
Bidi Mirrored Glyph Glyph for U+29A3 Reversed Angle
Bidi Paired Bracket Glyph for U+2220 Angle
Bidi Paired Bracket Type None
East Asian Width Ambiguous
Hangul Syllable Type Not Applicable
ISO 10646 Comment
Joining Group No_Joining_Group
Joining Type Non Joining
Line Break Ambiguous (Alphabetic or Ideographic)
Numeric Type None
Numeric Value not a number
Simple Case Folding Glyph for U+2220 Angle
Script Extension
Vertical Orientation R