From a point Q, the length of the tangent to a circle is 24 cm and the distance of Q from the centre is 25 cm. Then, the radius of the circle is

In figure ∠BDC = 35⁰ .Which angle is equal to ∠BDC?

A, B, C, D are four points of a circle in the order. A and C are the end points of a diameter, then ∠ADB can be

The central angle of arc ABC is 220^o ∠ABC is

One angle of a cyclic quadrilateral is 36^o .Then its opposite angle is

How many tangents can a circle have?

In the figure ,AB isa diameter of a circle and PT is a tangent to the circle. If PB = 2 cm, PT = 8 cm, then the radius of the circle is

Given two concentric circles of radii a and b ( a>b) find the length of a chord of large circle which touches the other.

In figure, quadrilateral ABCD is drawn such that all its sides touch the circle. If AB = 7cm, BC = 4cm and CD = 5 cm, then, the length of AD is

Which one of the following may be the central angle of a minor arc