Answer:
AB = 8π
Step-by-step explanation:
The length of the arc is calculated as
arc = circumference of circle × fraction of circle
= 2πr × [tex]\frac{144}{360}[/tex]
= 2π × 10 × [tex]\frac{2}{5}[/tex] ← cancel the 5 and 10, leaving
AB = 2π × 2 × 2 = 8π
