Question 93456
IF IT IS A SQUARE THEN: 4S=250 S=250/4 S=62.5 FOR EACH SIDE.
THEN THE AREA=62.5^62.5=3,906.25 SQ. METERS. 
ANY OTHER RECTANGLE LIKE A 50 BY 75 METER RECTANGLE WE GET
50*75=3,750 SQ. METERS.
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TO YOUR GENERAL QUAESTION -- THERE IS NO ONE ANSWER.