Question 1023522
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Assuming you mean the yard is square (not the year),
then the length of the side of a square area is equal to the square root of the area:
A=area; S=length of side
{{{A=S^2}}}
{{{sqrt(A)=sqrt(S^2)}}}
{{{sqrt(A)=S}}}
{{{sqrt(870ft^2)=S}}}
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{{{29.4858ft=S}}}
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ANSWER: The side of the yard is 29 and 1/2 feet
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