If PQ is a tangent then find the value of `angle(POQ)+angle(QPO)`.

If angle POQ is 70^(@) , then find the value of anglePBQ .

Name the points: in the interior of angle POQ

Name the points: in the exterior of angle POQ

PQ is a diameter of the circle with centre at O. The tangent drawn at C on the circle intersects externded PQ at R. If angle CPO =30^(@), then find the value of angle QCR.

In the given fig. PQ is tangent and PB is diameter. Find the value of x and y.

If the angles if a triangle are in A.P and tangent of the smallest angle is 1 then find all the angles of the triangle .

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 the adjoining figure angle QPO=24^(@) and angle SPR = 20^(@) , find the value of angle QOR .