A minor arc (left figure) is an arc of a circle having measure less than or equal to 
(
radians).
Minor Arc
See also
Arc, Major Arc, SemicircleExplore with Wolfram|Alpha
References
Rhoad, R.; Milauskas, G.; and Whipple, R. Geometry for Enjoyment and Challenge, rev. ed. Evanston, IL: McDougal, Littell & Company, pp. 420-421, 1984.Referenced on Wolfram|Alpha
Minor ArcCite this as:
Weisstein, Eric W. "Minor Arc." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/MinorArc.html