| Symbol | Format | Data |
|---|---|---|
| ∠ | Code Point |
U+2220 |
| TeX |
\angle |
|
| SVG | Download ↓ |
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.
The greek small letter π (pi) is a geometric constant approximately equal to 3.1416. The numeric value is equal to the length of any circle's circumference divided by its diameter.
An angle is the figure formed by two rays sharing a common endpoint called the vertex. Its size, measured in degrees or radians, is the amount of rotation needed to align one ray with the other.
The notation for a symbol is a small symbol written in text, sometimes followed by three letters that correspond to a figure.