Show how you can determine that the inscribed figure inside a quadrilateral is a parallelogram. Support your argument with diagrams.

See diagram

Step-by-step explanation:

A quadrilateral becomes a parallelogram when the diagonals bisects each other at a point E and hence proves the quadrilateral is a parallelogram. It shows both pairs of opposite sides being parallel to each other.

Following the theorem that states that, if two sides of a quadrilateral are opposite and congruent, then it is a parallelogram. Ditto for the theorem that states that,  that when diagonals cuts each other at a point in a quadrilateral, then its a parallelogram.