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

Prove that the parallelogram circumscribed about a circle is only a rhombus.

If a parallelogram circumscribes a circle then prove that it must be a rhombus.

Prove that the rectangle circumscribing a circle is a square

Prove that the rectangle circumscribing a circle is a square

Prove that opposites of a quadrilaterial circumscribing a circle subtend supplementary angles at the centre of the circle.

The perimeter (in cm) of a square circumscribing a circle of radius a cm,

The perimeter (in cm) of a square circumscribing a circle of radius a cm,

What is the perimeter of a square which is circumscribing a circle of radius x cm?