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.
