The quadrilateral with vertices at the points: (0,0), (3,2), (6,0), (3,-2) is a square
The vertices (or coordinates) of the quadrilateral is given as:

Calculate the distance between subsequent points, using the following distance formula

So, we have:








Notice that the sides of the quadrilateral are congruent.
Hence, the quadrilateral is a square
Read more about quadrilaterals at:
brainly.com/question/1543115