The radius of earth is 6347km. Its rounded off value up to two signifi

1.	The radius of earth is 6347km. Its rounded off value up to two significant figures is
Answer» 6400KM `6.4 xx 10^(3)KM` `6.3 xx 10^(3)km` `6.35 xx 10^(3)km` ANSWER :A

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