SOLUTION: ray planted a square garden that covers an area of 200 ft2. how many feet of fencing does he need to surround the garden? thanks for your help.

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Question 331511: ray planted a square garden that covers an area of 200 ft2. how many feet of fencing does he need to surround the garden? thanks for your help.
Answer by JBarnum(2146) About Me  (Show Source):
You can put this solution on YOUR website!
first thing i notice was a "square" garden meaning l=w
so a=lw
then 200=w^2
10sqrt%282%29=w
10sqrt%282%29=l
so perimeter for fence is P=2%28l%2Bw%29
P=2%2810sqrt%282%29%2B10sqrt%282%29%29
P=2%2820sqrt%282%29%29
P=40sqrt%282%29