Answer:
C. 5.2 cm
Step-by-step explanation:
Arc length formula:
[tex] s = \dfrac{n}{360^\circ} 2 \pi r [/tex]
where s = arc length
n = central angle of arc
r = radius of circle
diamter = d = 10 cm
r = d/2 = 10 cm/2 = 5 cm
n = 60 deg
[tex] s = \dfrac{n}{360^\circ} 2 \pi r [/tex]
[tex] s = \dfrac{60^\circ}{360^\circ} 2 \times 3.14159 \times 5 ~cm [/tex]
[tex] s = 5.2~cm [/tex]
Answer: 5.2 cm
