Code:

import math

radius = 7
angle_deg = 120

# Arc length formula: s = r * theta (where theta is in radians)
angle_rad = (angle_deg * math.pi) / 180
arc_length = radius * angle_rad

print(f"{angle_rad=}")
print(f"{arc_length=}")

Output:

angle_rad=2.0943951023931953
arc_length=14.660765716752367