Answer:
arc length = π/3 or 1.04
Explanation:
Circumference formula: dπ (where d is diameter)
The circumference is 6π.
Arc length formula: x/360 * C (where x is degree of central angle and C is circumference)
20/360 * 6π
simplify fraction for easier calculation
1/18 * 6π
simplify again
1/3π = approx. 1.04
