What is the arithmetic mean (average) of the areas of all noncongruent rectangles with integer side lengths and perimeter 8 units?
+36916 Possible rectangles and areas of each:
1 x 3 = 3
2 x 2 = 4
( 3+4))/ 2 =3.5 units2
(I assumed a 3 x 1 rectangle was the same as a 1 x 3 rectangle)
