If a square handkerchief has an area of w^2+4w+4feet, what is the length of one side?

Answer 1

here,
area= W^2+4w+4
=w^2+2.w.2+2^2
=(w+2)^2
as area of square handkerchief is L^2
therefore length of square handkerchief is (w+2) feet.