From a point P, two tangents PA and PB are drawn to a circle with centre O and radius r. If OP=2r, show that `triangleAPB` is equilateral.

From a point P, two tangents PA and PB are drawn to a circle with centre O. If OP= diameter of the circle,show that APB is equilateral.

In the given figure,from an external point Ptwo tangents PT and PS are drawn to a circle with centre O and radius r.If OP =2r, show that /_OTS=/_OST=30^(@)

Two tangents PA and PB are drawn to a circle with centre O from an external point P. Prove that angle APB = 2 angle OAB

In the given figure, from the point P two tangents PA and PB are drawn to a circle with centre O and radius 5cm. From the point O, OC and OD are drawn parallel to PA and PB respectively. If the length of the chord AB is 5cm, then what is the value of (in degrees) of angleCOD ?

In the given figure, from the point P two tangents PA and PB are drawn to a circle with centre O and radius 5 cm. From the point O, OC and OD are drawn parallel to PA and PB respectively. If the length of the chord AB is 5 cm, then what is the value of (in degrees) of angleCOD ?

From a point P, two tangents PT and PS are drawn to a circle with centre O such that angleSPT = 120^@ Prove that OP = 2PS.

From the external point P tangents PA and PB are drawn to a circle with centre O. If angle PAB = 50^(@) , then find angle AOB .

From a point P ,two tangents PT and PS are drawn to a circle with center O.Such that /_SPT=120^(@). Prove that OP=2PS.