I have 100 foot by 100 foot with equals 10,000 square feet. I want to water
this area without putting any sprinklers in the middle. All sprinklers will
be on the outside perimeter. Now I will put a sprinkler shooting 50 feet in
the middle of all 4 sides. This will work. The only problem is half my lawn
is getting twice as much as the other half. I can put a 10 foot diameter in
the middle and put a sprinkler network there. But I'm not sure which the
best way is. Any ideas?

Richard