<PRE><B>Question 498015</B>
l*w = 2400
Since we need 2 times the length and height to surround the area, we will use half of 200 for calculating the area.
l= 100 - width
w(100 -w) =  100w - w^2 = 2400
100w - w^2 - 2400 = 0
w^2 - 100w + 2400 = 0
(x - 60) (x - 40)
60 feet
40 feet
2(60) + 2(40) = 200 
60 feet * 40 feet = 2400 feet.
Cleomenius.
</PRE>