In the given figure, O is the centre of a circle and `angle ADC=130^@`.If `angle BAC=x^@`, Find the value of x.

In Figure,O is the centre of the circle.Find /_BAC

In the given figure, O is the centre of the circle, angle AOB = 90^(@) . Find angle APB :

In the adjoining figure, O is the centre of the circle. If angle AEB=110^(@), angle CBE=30^(@) , then the value of angle ADB is

In the given figure O is the centre of circle and angle BOC = 30^(@) , angle AOB = 60^(@) If there is a point D on the circle, not on arc ABC, then find angle ADC