Question

A rectangular lot is bounded on one side by a concrete wall if 100 m of fencing materials is available to enclose it on three sides. Determine the dimensions of the lot to cover a maximum area. :*

Answer 1

the maximum area of a rectangle is a square so the maximum area would have each side = 100/ 3 meters long
so maximum area is 10000 / 9 sq meters

Answer 2

good

Answer 3

or 1111.1 square meters

Answer 4

x+2y<=100
A = xy
maximise A

Answer 5

And (forgot):
x>=0
y>=0

Answer 6

Someone else please continue my answer...