Question

Find the length of the arc round your answer to the nearest tenth

Answer 1

arc ≈ 4.2 cm

Explanation:

The length of the arc is calculated as

arc = circumference of circle × fraction of circle

= 2πr ×
`(60)/(360)`

= 2π × 4 ×
`(1)/(6)`

= 8π ×
`(1)/(6)`

=
`(8\pi )/(6)`

≈ 4.2 cm ( to the nearest tenth )