Question 96378
l=w+60
perimeter=2l+2w
920=2(w=60)+2w
920=2w+120+2w
4w=920-120
4w=800
w=800/4
w=200 meters id the width.
l=200+60=260 is the length.
proof
920=2*200=2*260
920=400+520
920=920