# Mirror rorriM

Geometry Level 4

Martha notices that, when she puts two mirrors at an angle of $90^\circ$, the image across from her is not a left-right reversal as one would see in a flat mirror, but rather a "true reflection" of how other people actually see her. For example, in the above picture, the hand holding the candle in the central reflection actually looks like a left hand (rather than the opposite hand for a flat mirror).

So, now for the question...

This effect happened because the mirrors are at right angles.

For which of these angles would this effect still hold true?

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