Respuesta :

Stryfer

Answer:

6

Step-by-step explanation:

The circumference of a circle is [tex]2\pir[/tex][tex]\pi r[/tex], so [tex]12\pi=2\pi r\\12=2r\\r=6[/tex].  We can use this because the area of a circle is [tex]\pi r^2[/tex].  Thus, [tex]\pi*6^2=36\pi[/tex].