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A plot of land 60°m x 20 m is measure steel tape. If the standard error of length width measurements is taken as ± 1 cm, the standard error of the area of the plot be

± 0.1414 m2
± 0.566 m2
± 0.632 m2
± 0.8484 m2

Correct Answer: ± 0.632 m2

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