An angle's terminal ray begins rotating in the CCW direction, and a circle with a radius of 2.7 cm is centered at the vertex of the angle. Let ss represent the varying length (in cm) of the arc subtended by the angle's rays along the circle and let θ represent the varying radian measure of the angle. Complete the following statements.

As s varies from 0 to 2.16, θ increases by:

As s varies from 2.16 to 7.56, θ increases by:

As s varies from 7.56 to 16.2, θ increases by: