`PA` and `PB` are tangents to the circle with centre `O` from an external point `P`, touching the
Channel: Doubtnut
Date: 2020-04-19

`PA` and `PB` are tangents to the circle with centre `O` from an external point `P`, touching the circle at `A` and `B` respectively. Show that the quadrilateral `AOBP` is cyclic.