Respuesta :

Answer:

4 arbitrary units

Step-by-step explanation:

To find the diameter of the circle you would need to multiply the radius by 2. This is because the diameter is double the radius.

1) Multiply the radius by  2.

[tex]2*2=4[/tex]

The diameter is 4 because the radius is half of the circle and the diameter is the full length so you would multiply the radius by 2 to get the diameter witch would be 4