L=Lenght
W=Width
L=W+3
A=L*W
108=(W+3)*W
108=W^2+3W
W^2+3W-108=0
Solutions of this equation is:
-12 and 9
Lenght can't be negative,so W=9m
L=W+3=9+3=12m
L=12m W=9m
A=12*9=108m^2
The length of a rectangle is 3 meters more than its width.If the area is 108 sqaure meters What are the length and width?
1 answer
1 answer