Question

Prove that this quadrilateral is a rectangle. Please EXPLAIN how you would do this (you don't actually have to find the values).

Answer 1

if we take a look at the properties of a rectangle, we know that the opposite sides must be equal.

(A=0,3)
(B=3,0)

(C= 1,-2)
(D=-2,1)

they are both equally apart.