Graph a triangle (Imn) and reflect it over the
line y=x to create triangle l'm'n'. describe the
transformation using words. draw a line
segment from point I to the reflecting line,
and then draw a line segment from point l' to
the reflecting line. what do you notice about
the two line segments you drew? do you think
you would see the same characteristic if you
drew the line segment connecting m with the
reflecting line and then m' with the reflecting
line? how do you know?