An arc subtends a central angle of 60° in a circle of radius 12. What is the arc length? A 2π B 4π C 12π D 72π ✓ Correct Answer: Option B Arc length = (θ/360) × 2πr = (60/360)(2π)(12) = (1/6)(24π) = 4π. Practice ACT Exam Prep Quizzes → Browse All Questions Study Flashcards