Question

A circle has a radius of 63 cm.

Answer 1

Arc length = radius * central angle (in radians)
arc length = 63 * 2PI/9 radians
arc length = 14 PI

Answer 2

Answer:

$14\pi\ cm$

Step-by-step explanation:

we know that

The formula to calculate the arc length of the circle is equal to

$arc\ length=r \theta$

where

$r$ is the radius

$\theta$ is the central angle in radians

In this problem we have

$r=63\ cm$

$\theta=\frac{2\pi}{9}$

substitute the values

$arc\ length=63(\frac{2\pi}{9})$

$arc\ length=14\pi\ cm$