: Your dimensions don't equate... wouldn't two 30' X 60' triangles
: bisected diagonally by a walkway make a lawn 60' X 60 square?

Hi Seldon, obviously you are no math genius and I can't draw on the
keyboard. Try a pencil and paper, ask some student who is good in
geometry, or just trust my numbers.

: Why pray tell can't your sidewalks/walkways get wet... is it some
: kind of water soluable concrete... what do you do when it rains?

It is not the concrete that's the problem, but people walking
on it. Lots of foot traffic here.