The length and breadth of a metal sheet are 3.124m and 3.002 m respectively. the area of this sheet up to the correct number of significant figure is
A) 9.378 m2
B) 9.37 m2
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Correct option is A) 9.378 m2
result must have significant figures equal to least figures being multiplid do area of metal sheet 9.378 m2 (four significant digits)