You know from the law of reflection that when the line of sight reflects off the mirror, the angle of incidence equals the angle of reflection. Another way of thinking of that is that the ray ...

Reflection is a type of transformation. To reflect an object, you need a mirror line. When a shape is reflected, its size does not change - the image just appears 'flipped'. Every point on the ...

All it is is a device that measures the angle between two objects ... The arm can be moved to a position where the sun's reflection off the mirror also reflects off mirror A and through the ...