Respuesta :

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Answer:

The radius r = 30 cm

Step-by-step explanation:

The formula of a circumference of a circle:

[tex]C=2\pi r[/tex]

r - radius

We have [tex]C=60\pi\ cm^3[/tex]

Substitute:

[tex]2\pi r=60\pi\qquad|\text{divide both sides by }\ 2\pi\\\\\dfrac{2\pi r}{2\pi}=\dfrac{60\pi}{2\pi}\\\\r=30[/tex]

Answer:

r = 9.5492965855137 cm

Step-by-step explanation:

Answer:

r = 9.5492965855137 cm

C = 60 cm

A = 286.47889756541 cm²