In the figure PA,PB and RS are the three tangents to the circle. Prove that the perimeter of `/_\PRS` is the sum of the lengths PA and PB.

The radius of a circle with centre O is 8cm.P is a point outside the circle. PQ and PR are the tangents drawn from P to the circle.If /_QOR = 60^@ then find the lengths of PQ, PR andOP.

In the figure, tangents PA and PB are drawn to a circle with centre O from an external point P. If CD is a tangent to the circle at E and AP=25cm, find the perimeter of /_\PCD .

In the picture a triangle is formed by two mutually perpendicular tangents to a circle and a third tangent. Prove that the perimeter of the triangle is equal to the diameter of the circle.

In the figure,PQ is the diameter and RS is a tangent to the circle. . If /_SPQ=34^@ ,find /_SRP .

In the figure,PQ is the diameter and RS is a tangent to the circle. .If /_SPQ=34^@ ,find /_SQP .

In the figure,PQ is the diameter and RS is a tangent to the circle. .If /_SPQ=34^@ ,find /_RSQ .

In the figure C is the centre of the circle, PA and PB are tangents. PC=5 centimetres and radius of the circle is 3 centimetres. Find the length of PA .

In the given figure PA,PB are the tagents from the point P.Let O be the centre of the circle.If /_APB=40^@ . . Calculate /_AOB .

In the figure C is the centre of the circle, PA and PB are tangents. PC=5 centimetres and radius of the circle is 3 centimetres. What is the area of the quadrilateral PACB. .

In the figure chord BC is extended to P. Tangent from P to the circle is PA. AQ is the bisector of angleBAC Write one pair of equal angles from that figure. .