Respuesta :

mathstudent55
[tex] C = 2 \pi r[/tex]

[tex] 30~cm = 2 \times 3.14 \times r [/tex]

[tex] 30~cm = 6.28 \times r [/tex]

[tex] r = \dfrac{30~cm}{6.28} [/tex]

[tex] r = 4.77~cm [/tex]

Answer: The radius is 4.8 cm.