The area of a field as calculated from measurements taken with a 20m chain 0.5 links too short is found to be 120m². What is the true area of the field?
A119.4 m²
B121.2 m²
C120.2 m²
D118.8 m²
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A119.4 m²
B121.2 m²
C120.2 m²
D118.8 m²