Asked by chase
Mr. Smith would like to enclose a rectangular field that has an area of 1000 square feet. What is the minimum amount of fencing he will need if he only needs to use it on 3 sides since he can use the side of the barn for the fourth side.
Answers
Answered by
bobpursley
P=2W+L
LW=1000
P=2W+1000/W
dP/dw=2-1000/W^2=0
solve for W first, then L, then Perimeter (length of fencing)
LW=1000
P=2W+1000/W
dP/dw=2-1000/W^2=0
solve for W first, then L, then Perimeter (length of fencing)
Answered by
Bob
L=22.360
W=44.722
W=44.722
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