The length of a rectabgular field is 18 m longer than the width. the field is enclosed with fencing and divided into two parts with a fence parallel to the shorter sides. if 216 m of fencing are required what are the dimensions of the outside rectangle

Respuesta :

fencing = 4x+36 + x ( parallel to width) 
5x+36=216 
5x=180
/5
x=36 
width = 36m & length = 36+18= 54m