Question

the circumference of a circle is 18π kilometers. what is the diameter? c = 18π km give the exact answer in simplest form. kilometers

Explanation:

Step1: Recall the circumference formula

The formula for the circumference of a circle is $C = \pi d$, where $C$ is the circumference and $d$ is the diameter.

Step2: Substitute the given value

We know that $C = 18\pi$ km. Substituting into the formula $18\pi=\pi d$.

Step3: Solve for the diameter

Divide both sides of the equation by $\pi$. $\frac{18\pi}{\pi}=\frac{\pi d}{\pi}$, so $d = 18$ km.

Answer:

18 kilometers