Question

theorem of cyclic equadrilateral​

Answer 1

Answer:

Every corner of the quadrilateral must touch the circumference of the circle. ... One corner does not touch the circumference. The opposite angles in a cyclic quadrilateral add up to 180°.

Step-by-step explanation:

Answer 2

Answer:

Theorem 2. 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.