Respuesta :

Answer:

9.425cm

Step-by-step explanation:

The formula for the circumference of a circle is :[tex]\pi *diameter[/tex]

To work this out you would simply multiply the diameter of 3 cm by pi, which gives you 9.425.

1) Multiply pi by 3.

[tex]\pi *3=9.425[/tex]

The radius is half of the diameter.

The answer has been rounded to 3 decimal places.