Question

PA and PB are tangents at point A and point B of a circle with centre O from external point P. if angle AOB=100 find angle PBA​

Answer 1

Step-by-step explanation:

In the above problem

angle AOB is asked

it is called point of contact

and the angle of point of contact is 90°

point of contact means the point of intersection of radius of circle and tangent of a circle

For clear explanation observe above picture

ignore the central angle i have drawn 100° at wrong measure