Answer :
Arc length = r θ
where
r=radius
θ = angle subtended.
Applying relation,
1.5 = 2.58 θ
=>
θ = 1.5 / 2.58 = 25/43 radians (or =0.581 radians, to 3 places of decimal)
where
r=radius
θ = angle subtended.
Applying relation,
1.5 = 2.58 θ
=>
θ = 1.5 / 2.58 = 25/43 radians (or =0.581 radians, to 3 places of decimal)