U+2221 Measured Angle
U+2221 was added to Unicode in version 1.1 (1993). It belongs to the block
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 Neutral East Asian Width. In bidirectional context it acts as Other Neutral and is mirrored. Its corresponding mirrored glyph is
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.
Representations
System  Representation 

Nº  8737 
UTF8  E2 88 A1 
UTF16  22 21 
UTF32  00 00 22 21 
URLQuoted  %E2%88%A1 
HTML hex reference  ∡ 
Wrong windows1252 Mojibake  âˆ¡ 
HTML named entity  ∡ 
HTML named entity  ∡ 
L^{A}T_{E}X  \measuredangle 
Related Characters
Elsewhere
Complete Record
Property  Value 

1.1 (1993)  
MEASURED ANGLE  
—  
Mathematical Operators  
Math Symbol  
Common  
Other Neutral  
Not Reordered  
None  


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Any  
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NA  
Other  
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Yes  
Yes  


Yes  
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None  
Neutral  
Not Applicable  
—  
No_Joining_Group  
Non Joining  
Alphabetic  
None  
not a number  


R 