<p>Hi guys,</p>

<p>I am resolving Barron How to prepare for the SAT I found this question which has wrong answer I want to make sure though,because sometimes maybe I could have missed something.</p>

<p>If A(-1,1) and B(3,-1) are the endpoints of one side of square ABCD, what is the area of the square?</p>

<p>This question has two errors the first error is its stating that is a square the values are wrong

The height and width should be x;</p>

<p>Since both vectors has different x and different y we can conclude this should be the height and the width;</p>

<p>Height = 4; Width = 2; This should be a rectangle.</p>

<p>Also lets say we didn't conclude this we know that 3--1 = 4; so 4^2 = 16 and that answer is wrong; The actual answer is 20.</p>

<p>Is there something am I missing or is this question itself wrong ???</p>