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

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

Cyclic parallelogram is a 

Sum of the angles of cyclic quadrilateral is

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

The region between an arc and the two radii joining the centre to the end points of the arc is called

In the following figure , O is the centre of the circle , ∠POQ = 70^o and PS ⊥OQ.Then ∠MQS =

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 =                               

In the given figure A,B,C and D are four points on a circle.AC and BD intersect at a point E such that ∠BEC = 150^o and∠ ECD = 30^o.Then ∠BAC =

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