Respuesta :

gcantiga44

Arc length is equal to its corresponding central angle.

That means that the arc measures 120° too.

Answer:

≈ 4.2 cm

Step-by-step explanation:

The arc length is calculated as

arc = circumference of circle × fraction of circle

     = 2πr × [tex]\frac{120}{360}[/tex] ( r is the radius )

    = 2π × 2 × [tex]\frac{1}{3}[/tex]

   = 4π ÷ 3

   ≈ 4.2 cm ( to 1 dec. place )