find the radius of a circle with a circumference of 28π. the radius is units.

Explanation:

Step1: Recall circumference formula

The formula for the circumference of a circle is $C = 2\pi r$, where $C$ is the circumference and $r$ is the radius.

Step2: Substitute given value

We are given that $C = 28\pi$. So, $28\pi=2\pi r$.

Step3: Solve for radius

Divide both sides of the equation $28\pi = 2\pi r$ by $2\pi$. We get $r=\frac{28\pi}{2\pi}=14$.

Answer:

14