In the adjacent figure lines `PQ, QR , RS and SP` are tangents drawn respectively at the point `A, B, C, D` to the circle.
If `PQ + SR = 16` cm, then find the perimeter of the quadrilateral

In Fig. PQ || SR and SP || RQ. Then, angles a and b are respectively

In DeltaPQR, PQ=PR=18 cm, AB and AC are parallel to lines PR and PQ respectively. If A is the mid-point of QR, then what is the perimeter (in cm) of quadrilateral ABPC?

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 .

In Fig BA and BC are tangents to the circle drawn from an external point B . PQ is a tangent touching the circle at R. If BC = 12 cm and PR = 3 cm, what is the perimeter of DeltaBPQ ?

In the figure , PQ and PR are tangents drawn from and external point P to the circle with centre O. Q and R are the points of contact. If PQ = 5 cm then what is the length of segment PR ? Why ?

In the figure, PQ and RS are the common tangents to two circles intersecting at O. Prove that PQ=RS

A is a point at a distance 10 cm from the centre O of a circle of radius 6cm . AP and AQ are the tangents to the circle at P and Q .If a tangent BC is drawn at a point R lying on the mirror are PQ to intersect AP at B and AQ at C, find the perimeter of the DeltaABC .