Respuesta :

miadudg
[tex]2 \pi r [/tex] is the formula you need do you divide 47.1 by 2 and [tex] \pi [/tex] so its aproximatly 7.5 or 7.496
Circumference of a circle formula: C=2(pi)r
47.1in.=2(pi)r
---------  -------
 2(pi)     2(pi)  
 r=7.4962 

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