Asked by Elizabeth

I have a question about significant figures. In this problem, would I use the 2 as one significant figure and thus round only to one significant figure? or would I just use the diameter as the significant figure indicator?

radius= 1.90 cm/ 2 = .950 or 1

Thank you so much!
Answered by bobpursley
That is a 2 which is a counting number, the rule was radius is 1/2 diameter. So the answer then is 3 sig figures.
Answered by Elizabeth
Awesome! Thank you so much! So, for significant figures, we only take into account the numbers with units?
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