Respuesta :

sdmatera
The equation for circumference is C=pi*d
If the radius is 28, the diameter is twice that or 56. Then we plug in what we know

C=3.14*56
If we use 3.14 for pi, we get 175.84
keisurin
pi = 3.14
circumference = 2(pi)r
circumference = 2(3.14)(28)
                        = 175.84 square feet

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