What position variable in circular motion is analogous to the number line position variable in rectilinear motion?

Rectilinear motion and circular motion are similar in that, in their strict forms, they comprise single degree-of-freedom systems. As the position of a rectilinear movement can be noted with the location along the number lone, the position of a body undergoing circular motion is generally denoted by the angle (represented by the Greek letter theta) in either radians or degrees.

Ifound this on google “the middle ear contains three tiny bones known as the ossicles: malleus, incus, and stapes. the ossicles were given their latin names for their distinctive shapes; they are also referred to as the hammer, anvil, and stirrup, respectively.” i hope this you for what your looking for