Given that circular wire is of radius 3 cm, so when it is cut then its length = 2π × 3 = 6π cm.Again, it is being placed along a circular hoop of radius 48 cm. Here, s = 6π cm is the length of arc and r = 48 cm is the radius of the circle. Therefore, the angle θ, in radian, subtended by the arc at the centre of the circle is given by