[b]Proposition:[/b] To give a circular arc.
Arc1[A, B, C]
[math] \;\;\;[/math] A, the circle center
[math] \;\;\;[/math] B,C points on the circle
gives the circular arc BC. Respects minimum rotation.
Tool (.ggt): [url]http://www.geogebratube.org/material/show/id/111202[/url]