Radius
id:
radius-167-15905297
title:
Radius
text:
In classical geometry, a radius of a circle or sphere is any of the line segments from its center to its perimeter, and in more modern usage, it is also their length. The name comes from the Latin radius, meaning ray but also the spoke of a chariot wheel. The typical abbreviation and mathematical variable name for radius is R or r. By extension, the diameter D is defined as twice the radius:
- d ≐ 2 r ⇒ r = d 2. If an object does not have a center, the term may refer to its circumradius, the r
brand slug:
wiki
category slug:
encyclopedia
description:
Segment in a circle or sphere from its center to its perimeter or surface and its length
original url:
https://en.wikipedia.org/wiki/Radius
date created:
2005-04-22T17:52:03Z
date modified:
2024-08-30T12:05:55Z
main entity:
{"identifier":"Q173817","url":"https://www.wikidata.org/entity/Q173817"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/0/03/Circle-withsegments.svg","width":512,"height":517}
fields total:
13
integrity:
16