In a circle, the major arc is 3 times the minor arc. The corresponding central angles and the degree measures of two arcs are

If AB, BC and CD are equal chords of a circle with O as a centre and AD diameter, than ∠AOB =

Let C be the mid-point of an arc AB of a circle such that m=183°. If the region bounded by the arc ACB and line segment AB is denoted by S, then the centre O of the circle lies

If A and B are two points on a circle such that m=260°. A possible value for the angle subtended by arc BA at a point on the circle is

An equilateral triangle ABC is inscribed in a circle with centre O. The measures of ∠BOC is