In the given figure, if AOD = 135° then BOC is equal to A geometry figure shows a circle with center O. An external quadrilateral ABCD is drawn such that its sides AB, BC, CD, DA are tangent to the circle. Line segments OA, OB, OC, OD connect the vertices of the quadrilateral to the center O. Angle AOD is labeled 135 degrees. A chord BC is also shown within the circle.

Q18 of 105 Page 598

In the given figure, if ∠AOD = 135° then ∠BOC is equal to

If PA and PB are two tangents to a circle with center O such that ∠AOB = 110° then ∠APB is equal to

In the given figure, the length of BC is

In the given figure, 0 is the center of a circle and PT is the tangent to the circle. If PQ is a chord such that ∠QPT = 50° then ∠POQ = ?

In the given figure, PA and PB are two tangents to the circle with center O. If ∠APB = 60° then ∠OAB is