proving a quadrilateral is a rhombus - coordinate geometry

In this video, I show how to prove that a quadrilateral is a rhombus using coordinate geometry. The method of proof involves showing that diagonals of the quadrilateral bisect each other and are perpendicular to each other. I review concepts such as midpoints, slope of line segments, parallelograms and rhombuses. If this video was helpful, please LIKE and SUBSCRIBE. If you have any requests, leave the topic(s) you want me to cover in the COMMENT section. Thanks for watching!