In the given figure, PQ is tangent to outer circle and PR is tangent to inner circle. If PQ = 4cm, OQ = 3 cm and OR = 2 cm then find the length of PR.

In the given figure,PQ is tangent at a point R of the circle with centre O.If,find m/_PRS .

There are two concentric circles with centre O. PRT and PQS are tangents to the inner circle. If PR = 5 cm, find the length of PS.

In two concentric circles with centre O.PQ is the diameter of outer circle and QS is the tangent line to the inner circle touching it in R and outer circle is S.Find the length of PR,if radii of two circles are 13cm and 8cm.

In the figure AB = PQ, PR = 2 cm Find the length of QR.

In the following figure,PR is a secant and PT is atangent to the circle.If PT=6cm and QR=5cm, then PQ-cm.TI

In the following figure, PR is a secant and PT is a tangent to the circle. If PT=6cm and QR=5cm , then PQ= _______cm.

In the given figure L, M and N are mid point of the sides PQ, PR and QR respectively of DeltaPQR . If PQ = 4.4 cm, QR = 5.6 cm and PR = 4.8 cm then find the perimeter of DeltaLMN .