Calculate Circle Circumference: Using Given Radius Length of 8

Question

O is the center of the circle in the figure below.

What is its circumference?

00:00 Find the circumference of the circle

00:03 Radius - the line segment connecting the center of the circle with a point on its circumference

00:06 We will use the formula to calculate the circle's circumference

00:10 We will substitute the value of R and solve for the circumference

00:18 And this is the solution to the problem

We use the formula: $P=2\pi r$

We replace the data in the formula: $P=2\times8\pi$

$P=16\pi$

$16\pi$ cm