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**Circumference**and**Area**of a**circle**:**Circumference is defined by: C = 2*pi*r**So C = (2)(22/7)(3.5ft.)**C = 22ft**. Circumference can also be looked at as perimeter. That means If you walked all the way from starting point to that point again, that would be circumference or perimeter.**Area is the**… Read more