Question

Find the length of an arc of a circle with a 8-cm radius associated with a central angle of 240 degrees. Give your answer in exact and approximate form to the nearest hundredth.

Answer 1

l = 1920 cm

Explanation:

Given that,

The radius of circle, r = 8 cm

The central angle is 240 degrees

We need to find the length of the arc. We know that,

`l=r\theta`

Where

l is the length of the arc

So,

`l=8* 240`

`\implies l=1920\ cm`

so, the length of the arc is equal to 1920 cm.