📐 Unit Circle & Trig

Arc Length, Area, and Trigonometric Functions

📝 Key Formulas (Calculator Allowed!)

• Degrees → Radians: multiply by π/180

• Radians → Degrees: multiply by 180/π

• Arc Length: s = (θ/360) × 2πr or s = rθ (radians)

• Sector Area: A = (θ/360) × πr² or A = ½r²θ (radians)

📚 Key Values to Know (Click to flip)