The area of a rectangular wall of a barn is 198 square and the length is 22.
We have given that,
The area of a rectangular wall of a barn is 198 square feet Its length is 4 feet longer than twice its width.
L=2W+4
L is the length and W is the width.
W(2W+4)=198
2W^2+4W-198=0
2(W^2+2W-99)=0
2(W+11)(W-9)=0
W-9=0
W=9 feet is the width.
L=2*9+4=18+4=22 and is the length.
Therefore the length is 22.
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