Which one of the following may be the central angle of minor arc.

In the following figure ABCD is a cyclic quadrilateral in which AC and BD are its diagonals.If ∠DBC = 60^o and ∠BAC = 40^o, then∠ BCD =                               

The length of the complete circle is called its

In the adjoining figure, PQ = PR and ∠PRQ = 70^o.Then ∠QAR =

ABCD is a cyclic quadrilateral ∠A : ∠C = 3 : 2 ∠B : ∠D = 4 : 1 then ∠D =

One angle of a cyclic quadrilateral is 60^o.Then its opposite angle is 

The collection of all the points in a plane which are at a fixed distance from a fixed point in the plane is called 

The central angle of an arc ABC is 220^o. Then ∠ABC is 

Which one of the following may be the central angle of a major arc.

The number of circle passing through three non - collinear points =