Reflections are everywhere ... in mirrors, glass, and here in a lake.
... what do you notice ?
Every point is the same distance from the central line !
... and ...
The reflection has the same size as the original image
The central line is called the Mirror Line, and it doesn't matter what direction the mirror line goes, the reflected image is always the same size, it just faces the other way:
A reflection is a FLIP over a line
You can try reflecting different shapes about different mirror lines here:
Try it out to see what happens !
Note: If you cannot see this interactive graph, you will need to install "Flash Player"
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