Question

Help!!!
Prove or disprove that the quadrilateral defined by the points A(5,3), B(3,5), C(1,3), D(3,1) is a square.

Answer 1

@Directrix

Answer 2

http://www.wolframalpha.com/input/?i=(5,3)+(3,5)+(1,3)+(3,1)

Answer 3

on the bottom it will tell you .

Answer 4

@welshfella