Respuesta :

Answer:

The diameter of the circle is [tex]D=9\ units[/tex]

Step-by-step explanation:

we know that

The circumference of a circle is equal to

[tex]C=\pi D[/tex]

where D is the diameter

we have

[tex]C=9\pi\ units[/tex]

substitute and solve for D

[tex]9\pi=\pi D[/tex]

Simplify

[tex]D=9\ units[/tex]