I am sorr
I don't understand your question
or in a circle only a diameter is there
Join A and C to any point P in major arc AC.
We know that the angle subtended by an arc of a circle at the centre is double the angle subtended by it any point on the remaining part of the circle.
Now, ABCP is a cyclic quadrilateral and sum of opposite angles in a cyclic quadrilateral is 180°
in figure o is the centre of the...