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

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 =

Sum of the angles of cyclic quadrilateral is

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

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

Cyclic parallelogram is a 

A, B, C, D are four points of a circle in the order. A and C are the end points of a diameter, then ∠ADB can be

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 =                               

Two circles of radii 4 cm and 6 cm touch each others, then distance between their  centres when they touch internally is

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