Symbol  Format  Data 

∠  Code Point 
U+2220 
TeX 
\angle 

SVG 
In geometry, the ∠ (angle) symbol is used to denote an angle formed by three points. The middle point corresponds to the vertex at which the angle lies. Typically the angle symbol is used in an expression like this:
In plain language, this means the angle is formed by the three points , , and with the vertex at point . For example, this expression could be used to reference the angle illustrated in the figure below.
In mathematics, the degree symbol is used to represent an angle measured in degrees. The symbol is also used in physics to represent the unit of temperature: Fahrenheit.
The right angle symbol is used to denote a right angle.
An angle is a measure of rotation or turning and is usually measured in degrees or radians. In geometry, an angle is the figure formed by two rays, sharing a common endpoint called the vertex.
The notation for a symbol is a small symbol written in text, sometimes followed by three letters that correspond to a figure.