How do you round 65.145 meters to three significant figures?

1 Answer
Dr. Hayek
Aug 26, 2016

#65.1#

Explanation:

The number

#underbrace(65.145)_(5" significant figures")#

could be rounded to three significant figures as:

#underbrace(65.1)_(3" significant figures")#

Note that it is #65.1# and not #65.2# because the number next to #.1# is #4# which is smaller than #5#.

However, if the number was for example #65.155# it could be then rounded to #65.2#.

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