Parallelogram circumscribing a circle is a ………………..

Prove that opposite sides of a quadrilateral circumscribing a circle subtend supplementary angles at the centre of the circle .

The ratio of the area of a regular polygon of n sides inscribed in a circle to that of the polygon of same number of sides circumscribing the same circle is 3:4. Then the value of n is

A triangle ABC is drawn to circumscribe a circle of radius 3 cm. such that the segments BD and DC into which BC is divided by the point of contact D are of length 9 cm. and 3 cm. respectivley. Find the sides AB and AC.

If 4y=x +7 is a diameter of the circumscribing circle of the rectangle ABCD and A(-3,4), B(5,4). then the area of the rectangle.

If all the sides of a parallelogram are equal it is called…………….

In a parallelogram _____