Circular segment: Difference between revisions

Content deleted Content added
top: Footnote for jargon (disk vs circle).
Tags: Mobile edit Mobile app edit Android app edit
top: Move jargon to end of paragraph so the concept is explained on its own; explain jargon.
Tags: Mobile edit Mobile app edit Android app edit
Line 2:
[[Image:Circularsegment.svg|frame|right|A circular segment (in green) is enclosed between a secant/chord (the dashed line) and the arc whose endpoints equal the chord's (the arc shown above the green area).]]
 
In [[geometry]], a '''circular segment''' or '''disk segment''' (symbol: <span style="font-size:1.5em">⌓</span>), also known as a '''disk segment''', is a region of a [[disk (mathematics)|disk]]<ref>Mathematics distinguishes when necessary between the words ''circle'' and ''disk'': a disk is a plane area having a circle as its boundary, while a circle is the closed curve forming the boundary itself.</ref> which is "cut off" from the rest of the disk by a straight line. The complete line is known as a ''[[secant line|secant]]'', orand the section inside the disk as a ''[[chord (geometry)|chord]]''.

More formally, a circular segment is a region of [[Plane (mathematics)|two-dimensional space]] that is bounded by a [[circular arc]] (of less than π radians by convention) and by the [[circular chord]] connecting the endpoints of the arc.
 
== Formulae ==