The Navajo and Pueblo Indians create large, circular sand paintings as part of traditional healing ceremonies.  How much more circumference does a sand painting with a 20-foot diameter have compared with one with a 5-foot diameter?

Respuesta :

Approximately 47ft 
Circumference= 2πr 
r= d/2
r=10 r=2.5
Circumference= 63 Circumference=16
63-16=47

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