Question

if the area of a rectangle is 54sq.m and its width is 75cm , find its length in metres

Answer 1

$A_{\fbox{ }}=54m^2\\\\width:w=75cm=0.75m\\\\length:l=?\\\\A_{\fbox{ }}=w\times l\\\\0.75l=54\ \ \ \ |diviede\ both\ sides\ by\ 0.75\\\\l=72\ (m)\\\\Answer:The\ length\ of\ a\ rectangle\ is\ 72m.$

Answer 2

area rectangle= lxb
54=Lx75/100 
L= 5400/75= 72m