Answers

2014-02-24T22:14:45+08:00
The solustion must be: 

27 divided by 2 = 13.1

Half of the diameter is what we called radius, so we should divide the diameter by 2 in order to get the radius. If we are going to get the diameter, we should multiply the radius by 2. :))
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2014-02-24T22:29:21+08:00
27dm * 3.14 which is the pi....then the answer is 84.78 dm

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