question_answer 2)

For the given figure, which one is the mirror line, \[{{l}_{1}}\] or \[{{l}_{2}}\]?

Answer:

                We know that, if we fold a picture in half, such that the left and right halves match exactly, then the picture is said to have line of symmetry or mirror line. Here, if we fold the picture about \[{{l}_{2}},\] then the left and right halves match exactly. So, \[{{l}_{2}}\] is the mirror line.