Question

Theorem of cyclic quadrilateral​

Answer 1

Answer:

The ratio between the diagonals and the sides can be defined and is known as Cyclic quadrilateral theorem. If there's a quadrilateral which is inscribed in a circle, then the product of the diagonals is equal to the sum of the product of its two pairs of opposite sides.

Answer 2

$this \: an \: theorem \\ of \: cyclic \: \\ quadrilateral....$