Area= width * length w=1/2 length Area+ 128 sqr ft
Plug in the information you know into the Area formula.
128 ft2= w * l 128 ft2= (1/2 l)(l) 128 ft2=l/2 multiply both sides by 2 to get rid of the fraction 256 ft2 = l take the square root of 256 16=length in feet
