Respuesta :

Given:

a.) A circle with a radius of 3 inches long.

To be able to get the circumference of the circle, we will be using the following formula:

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

Where,

C = Circumference

r = radius

We get,

[tex]\begin{gathered} \text{ C = 2}\pi r \\ \text{ = 2(3.14)(3)} \\ \text{ = 6 x 3.14} \end{gathered}[/tex][tex]\text{ C = 18.84 in.}[/tex]

Therefore, the circumference of the circle is 18.84 in.