Question 1186651
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The plot of land is square with side length x; the plot consists of a 60x40 foot building and a parking lot of 12,000 square feet:<br>
{{{x^2=(60)(40)+12000=2400+12000=14400}}}
{{{x=sqrt(14400)=120}}}<br>
ANSWER: the plot of land is 120 feet by 120 feet.<br>