Answer:
AB ≈ 2.62 cm
Step-by-step explanation:
The arc AB is calculated as
AB = circumference of circle × fraction of circle
   = 2πr × [tex]\frac{15}{360}[/tex]
   = 2π × 10 × [tex]\frac{1}{24}[/tex]
   = [tex]\frac{20\pi }{24}[/tex]
   ≈ 2.62 cm ( to the nearest hundredth )