A square yard has area 1764 m2. From a corner of this yard, another square part of area 784 m2 is taken out for public utility. The remaining portion is divided in to 5 equal square parts. What is the perimeter of each of these equal parts?
Area of yard = 1764 m2
Area of part taken out = 784 m2
Area of remaining part = 1764 – 784
= 980 m2
∴ Area of one part out of 5 equal parts 
= 196 m2
Side of the square of area 196 m2 = √196
= 14 m
∴Perimeter of each small square part = 4 × 14
= 56 m
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