Question

1. the circumference of a circle is 16π in. find the radius.

Explanation:

Step1: Recall the circumference formula

$C = 2\pi r$ (where $C$ is circumference and $r$ is radius)

Step2: Substitute the given value of $C$

Given $C = 16\pi$, so $16\pi=2\pi r$

Step3: Solve for $r$

Divide both sides by $2\pi$. $\frac{16\pi}{2\pi}=r$, then $r = 8$ in.

Answer:

8 in.