Respuesta :

texaschic101
C = 2 * (pi) * r
C = 2 * (pi) * 3.5.....3 1/2 = 3.5
C = (2 * 3.5) * (pi)
C = 7(pi) cm <===
boffeemadrid

Answer:

(B) [tex]7{\pi}cm[/tex]

Step-by-step explanation:

We are given the radius of the circle that is equal to [tex]3\frac{1}{2}cm[/tex].

Now, circumference of circle is given as:

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

[tex]C=2{\pi}(3\frac{1}{2})[/tex]

[tex]C=2{\pi}(\frac{7}{2})[/tex]

[tex]C=7{\pi}cm[/tex]

Therefore, the circumference of the circle is [tex]7{\pi}cm[/tex].

Hence, option B is correct.