In Fig, O is the center of the circle. Find the angle of `triangleABC`.

‘O’ is the centre of the circle. Find angle(ADB)

In the adjoining figure, O is the centre of the circle. Find the value of angle BEC .

In the adjoining figure, O is the centre of the circle. Find the value of angle BEC .

In the xy-plane above, O is the center of the circle, and the measure of angle AOB is kpi radians. What is a possible value for k?

In the figure,O is the center of the circle and BO is the bisector of angle ABC show that AB=BC

In the xy-plane above, O is the center of the circle, and the measure of angle AOB is (pi)/(a) radians. What is the value of a ?

If O is the center of the circle, find the value of x in each of the following figures:

In the given figure, O is the centre of the circumcircle of triangleABC . Tangents at A and C intersect at P. Given angle AOB=140^(@) and angle APC=80^(@) find the angle BAC.

In the adjoining figure , O is the centre of the circle and angleOAB=60^(@) . Find angle APC .