Land measurement.

Write a Raptor program that inputs from the user the width and height
of the graphics window and the size of the circles as the "frame" of the window. 
See the windowshots on the class web site. 
Don't worry about overlapping circles in the corners.

The program then gets two mouse clicks for two oppposite points of a rectangle.
This represents a rectangular plot of land. 
Each pixel point on the screen represents one foot in length.
Calculate the area of the rectangle in square feet, acres, and hectares.
 
1 acre = 1/640 of a square mile 
1 acre = 43,560 square feet = 208.7ft*208.7ft  (about the size of a football field)
1 hectare = 100m * 100m = 10,000 square meters = 2.47105 acres

The land rectangle is drawn, 
the dimensions are displayed on/at/near a width and a height line, 
the area data is displayed in the center of the rectangle.

Print the code in Raptor, make windowshots of your test cases/examples.
Make your test cases similar to the posted examples.