mirrors can be convex, concave or flat. It depends on their purpose. The type of mirror you use to look at yourself in the bathroom is just a flat, or plane, mirror and reflects the image back normally. Concave mirrors magnify images or make them larger. Think about a make-up mirror for a concave mirror. Convex mirrors, like the side mirrors in a car, allow you to see a larger area at once (but also make images appear smaller).
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