Axel Contreras on Instagram: "🎶 The Radian Song | Learn π and Angles with Music (Animated) 🎵 Learn radians with music! In this animated math song, you’ll understand what a radian really is—using arcs, circles, ropes, and rhythm. Through a clear visual explanation and a catchy melody, you’ll see how wrapping the radius around the circle reveals one of the most important ideas in trigonometry. In this video you’ll learn: 🔹 What a radian truly represents 🔹 Why 1 radian ≈ the length of the radiu