Notation Convention and List of Defining Data for an Isometry

Geometric Defining Data - What does this mean?

The notation and terminology below will be used for isometries. You are urged to use it also in your answer.
If a question asks for the type or kind of an isometry, the answer would be a word or words from the left-hand column.
If you are asked in a problem for the defining data for an isometry or to state precisely what isometry T is, this means to indicate the geometrical data that will tell precisely what the transformation is. The answer to this question would be the information listed in the right-hand column.

(a) Identity = I	State that all points are fixed.
(b) Line Reflection = R_m	Specify the mirror line m.
(c) Point Reflection = R_A or H_A or A₁₈₀	Specify the center point A.
(d) Translation = T_v	Specify the translation vector v. In a figure, this usually means telling that v = AB for some points A and B.
(e) Rotation = A_t	Specify the center A and the measure t of the counterclockwise rotation or an angle in the figure that is equal to t..
(f) Glide Reflection = G_AB	Specify the invariant line AB and the glide vector AB.