Respuesta :

Answer:

24pi or 75.4

Step-by-step explanation:

The formula for circumference of a circle is pi(d) or pi(2)(r). Plug in 12 for the radius.

pi(2)(12)

Multiply

pi(24)

You can leave it as 24pi or if multiply pi if your teacher says to.

24pi=75.4

The circumference of the circle is 24pi or 75.4