Kristin boards a Ferris wheel at the 3-o'clock position and rides the Ferris wheel for one full rotation. The radius of the Ferris wheel is 8 meters. Imagine an angle with a vertex at the center of the Ferris wheel that subtends the arc along which Kristin travels. If Kristin travels 10.4 meters, what is the angle's measure in radians?
 radians   

If Kristin travels 24.8 meters, what is the angles' measure in radians?
 radians   

Let s represent the varying number of meters that Kristin has traveled since the Ferris wheel started rotating. Write an expression that represents the varying measure of the angle (in radians).