Answer:
The angle subtended by the angle is π rad.
Explanation:
Length of an arc is expressed as rθ
L = rθ
r is the radius of the circle
θ is the angle subtended by the arc
Given L = 3π units
diameter = 2×radius = 6units
radius = 6/2 = 3units
Substituting this values in the formula to get θ we have;
3π = 3θ
θ = 3π/3
θ = π rad