Diameter
In geometry, the diameter of a circle is a line from one side directly to the opposite side through the center. It can also be defined as the longest chord of a circle. The same explanations can be also used to describe the diameter in a sphere.
The letter d or the symbol ⌀ are often used as a symbol for the diameter.[1] The diameter's length is often called the diameter itself.
The diameter's length is twice the radius,[2] and therefore the relationship between the diameter's length and radius can be shown with the equations:[3]
[math]\displaystyle{ d = 2r }[/math] and [math]\displaystyle{ r = \frac{d}{2} }[/math]
Diameter Media
Sign ⌀ in a technical drawing
Sign Error using {{unichar}}: Input "2205" is not a hexadecimal value. from an AutoCAD drawing in dim.shx font with an angle 16°. This font does not contain Error using {{unichar}}: Input "2300" is not a hexadecimal value..
Related pages
References
- ↑ "List of Geometry and Trigonometry Symbols". Math Vault. 2020-04-17. Retrieved 2020-09-24.
- ↑ "Basic information about circles (Geometry, Circles)". Mathplanet. Retrieved 2020-09-24.
- ↑ Weisstein, Eric W. "Circle". mathworld.wolfram.com. Retrieved 2020-09-24.