A tangent is drawn from a point at a distance of 17 cm of circle C(0, r) of radius 8 cm. The length of its tangent is

Two concentric circles of radii a and b (a > b) are given. Find the length of the chord of the larger circle which touches the smaller circle.

If TP and TQ are two tangents to a circle with center O such that ∠POQ = 110°, then, ∠PTO is equal to:

In the given figure, AB is a diameter of the circle. If AC = BC, then ∠CAB is equal to

In figure, O is the centre of a circle, AB is a chord and AT is the tangent at A. If ∠AOB = 100°, then ∠BAT is equal to

The tangents drawn at the extremities of the diameter of a circle are

In the given figure, PA and PB are tangents from a point P to a circle with centre O. Then the quadrilateral OAPB must be a

TA and TB are the tangents drawn to a circle from an external point T. If  $\angle ATB$  = 60 then $\Delta$  TAB is 

A chord of a circle is equal to the radius of the circle, the angle subtended by the chord at a point on the minor arc

The length of the tangent drawn from a point 8 cm away from the centre of a circle, of radius 6 cm is

In fig, O is the centre of the circle. PQ is tangent to the circle and secant PAB passes through the centre O. If PQ = 5 cm and PA = 1 cm, then the value of 'x' is

In terms of radius, a diameter is equals to

If two tangents inclined at an angle 60 are drawn to a circle of radius 3 cm then the length of each tangent is

In the given figure, PT is a tangent drawn from external point P, then the value of OT is

In the given figure, AB and AC are tangents to the circle with centre O such that ∠BAC = 40°, then ∠BOC is equal to

If O is the center of a circle of radius R and AB is a chord of the circle at a distance R/2 from O and OP $\perp$  AB,  then ∠PBO =

The length of tangents drawn from an external point to the circle

In the given figure, if  $\angle RPS$  = 25°, the value of  $\angle ROS$  is

Both tangent and radii