In figure, O is the centre of a circle. PT and PQ are tangents to the circle from an external point P. If `angleTPQ=70^(@)`, find `angleTRQ`.

In the given figure, O is the centre of the circle and TP is the tangent to the circle from an external point T. If /_PBT =30^@ , prove that BA:AT =2:1

In the figure, O is the centre of the circle and LN is a diameter. If PQ is a tangent to the circle at K and angle KLN = 30^(@) , find angle PKL .

In given figure, O is the centre of the circle and LN is a diameter. If PQ is a tangent to the circle at K and angleKLN=30^(@) , find anglePKL .

In Figure 4,PQ and PR are tangents drawn to a circle with centre O from an external point P . If /_PRQ=70^(@), then find /_QPR and /_OQR

In Figure,O is the centre of a circle and PQ is a diameter.If /_ROS=40^(@), find /_RTS

In Fig , O is the centre of a circle , PQ is a chord and the tangent PR at P makes an angle of 50^@ with PQ. Find anglePOQ .

In the given figure, TP and TQ are tangents drawn from an external point T to a circle with centre O such that angleTQP=60^(@) . Find angelOPQ.

In the adjoining figure O is the centre of the circle and AB is the diameter. Tangent PQ touches the circle at D. angleBDQ = 48^(@) . Find the ratio of angleDBA: angleDCB :

In the figure, point P is the centre of the circle and line AB is the tangent to the circle at the point T. The radius of the circle is 6 cm . Find PB, if /_ TPB = 60^(@)