In order to solve this problem, we need to find the length of a width, and a length of the long side.
To find how long the width is, we use the distance formula on the points (2,-3) and (5,-1).
This is

Now, we find how long the length is. We do this the same way:

Now, we multiply 3.6 by 7.2 to get our answer. This is equal to 25.9, so this is the area.