Respuesta :

Length (L): 2w

width (w): w

Perimeter (P) = 2L + 2w

               78 = 2(2w) + 2(w)

               78 = 4w + 2w

                78 = 6w

                13 = w

Length (L): 2w   = 2(13)   = 26

Answer: width = 13 meters, length = 26 meters