Answer:
C≈251.33
Step-by-step explanation:
C=2πr=2·π·40≈251.32741
You're welcome
The greatest common factor of those two numbers is 15.
*cough* Should've taken notes *cough*
The answer is Mean:
(took this from a different source) : <span>The mean is the most common measure of central tendency used by researchers and people in all kinds of professions. It is the measure of central tendency that is also referred to as the average. A researcher can use the mean to describe the data distribution of variables measured as intervals or ratios.
Hope this helped!
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