Question 973135
W
L

2W+2L=294
L=W+41

Substitute 

2W + 2(W+41)=294 feet

2W +2W+ 82=294 feet

4W=212 feet

W=53 feet
L+41=94  feet

Two widths are 106 feet; two lengths are 188 feet.  Their sum is 294 feet.