It is given in the question that
A farmer owns about 960 acres of land. If his farm is square.
First we convert acres to miles square, and the conversion expression is
[tex]1 acre=0.0015625 mi^2[/tex]
Therefore,
[tex]960acres=960*0.0015625=1.5 mi^2[/tex]
Let the side length of the square be x miles .
And the formula of area of square is
[tex]Area=side^2 \\ 1.5=side^2 \\ side= \sqrt{1.5}=1.2 miles[/tex]