Question 51097
14 8 FOOT TIES CAN MAKE A RECTANGLE OF L+W=14/2 OR L+W=7 OR MAX VALUES OF X&Y ARE 3 & 4 THUS A 3 BY 4 TIE RECTANGLE IS THE MAX SIZE OR (3*8)(4*8)=24*32=768 SQFT.

PROOF DRAW RECTANGLE USING 8 FOOT LINES FOR EACH TIE AND YOU'LL FIND A 3 BY 4 
RECTANGLE IS THE LARGEST AREA.