If the diameter is 18 what is the circumference

18pi or 56.55 to the nearest hundredth.

Step-by-step explanation:

Circumference = pi * diameter.

The answer is

56.57

Step-by-step explanation:

In the process,

Diameter= 18,

Radius(r)=  18 / 2

∴ Radius= 9

Now,

Circumference (Perimeter) = ?

According to the formula,

Perimeter= 2×227×r

Taking the equation,

Perimeter= 2×227×r

⇒ 2×227×9

⇒ 396 / 7

⇒ 56.57142857

⇒ 56.57

Let's hope this helps you:)