One-Dimensional Linear Position Is Measured Along a Line, from a Point

Multiple Choice

One-dimensional linear position is measured along a line, from a point designated x = 0.One-dimensional angular position:

A) is measured along a line, from a point designated θ = 0.
B) is measured along the axis of rotation.
C) is the angle that an internal reference line makes with a fixed external reference line.
D) is measured relative to the positive y axis.
E) is meaningless, as rotations take place in two dimensions.