Oriented circular arc; arrow showing the direction of rotation.
ArcArrow1[A,B,C, λ]
Gives arc BC on the circle with center A, radius AB.
λ determines the arrowhead size.
[i]Oriented:[/i] the arc respects minimum rotation.
i.e. Arc BC is the unique circular arc corresponding to the segment BC.
Or, Directed arc BC subtends central angle BAC.
Construction: [url]http://www.geogebratube.org/material/show/id/65946[/url]
To return the signed angle of the same arc:
Tool: [url]http://www.geogebratube.org/material/show/id/99838[/url]
