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[[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''' (symbol: <span style="font-size:1.5em">⌓</span>), also known as a '''disk segment''', is a region of a [[disk (mathematics)|disk]] which is "cut off" from the rest of the disk by a [[secant line|secant]] or 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 ==
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