1003161101

SubArea: 
Geometric mappings
Level: 
A
Project ID: 
1003161101
Accepted: 
1
Clonable: 
0
Easy: 
1
Given p is a line of reflection, which lines are mapped to themselves across the line p?
The line p and all lines perpendicular to p are mapped to themselves.
All lines parallel to the line p are mapped to themselves.
There are no lines which are mapped to themselves.
The line p only.