The length of the diagonal of a rectangle is 10 cm. The area of its circumscribed circle is

Determine the length of a tangent to a circle with radius 5cm, drawn from a point at distance 13cm from the centre of the circle.

The length of the diagonal of a rectangle is 10 cm. The area of its circumscribed circle is 

The tangent at any point of a circle is perpendicular to the _________ through the point of contact.

Quadrilateral ABCD is drawn such that all its sides touch the circle. If AB = 6 cm, BC = 7 cm and CD = 4 cm, find AD.

________ is a line segment joining any two points on a circle.

If P is a point outside the circle, then the number of tangents from P to the circle is

Two circles touch externally at a point P. From a point T on a common tangent PT, tangent segments TA and TB are drawn to the two circles. Then TA =

In two concentric circles, a chord of the larger circle touches the smaller circle. If the length of this chord is 8 cm and diameter of the smaller circle is 6cm, then find the diameter of the larger circle.

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