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A square field has an area of 479 ft2. What is the approximate length of a side of the field? Give your answer to the nearest foot.
A. 240
B. 23
C. 22
D. 21

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Dontthankmebrainme
Hey there,

So all we really need to do for this one is 

area=LW, L=W in squaer so 479=L^2, squaer root both sides, L=W=21.88=22 rounded

so it is C
apologiabiology
area=legnth times width

in a square, legnth=width

area=legnth times legnth
area=479
479=legnth^2
square root both sides
21.8ft=legnth
round tonearset foot
22

answer is C

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