I need to plot a few coordinates of a rectangle in order to find the area. The coordinates are (-52, 73), (96, 73), (96, 1483) ... and I am expected to find and plot the 4th coordinate in order to form a rectangle. My question is is there a website that will plot these coordinates and give me the area (or make it easy for me to find the area)??? Because it would be really unhandy to graph this by hand. Or is there a simple way to find the 4th coordinate and area?