An investigation on the properties of a reflection.

Grab any point on △ABC and move it around. You can also grab point E on the line of reflection and move it around. What do you notice about the following things?[br](a) The angle between segment AA' and the line of reflection?[br](b) The length of the segment from A to A'?[br](c) The angle between segment BB' and the line of reflection?[br](d) The length of the segment from B to B'?[br](e) The angle between segment BB' and the line of reflection?[br](f) The length of the segment from B to B'?