Suppose we have to build a road from city A to city B, but these cities are separated by a river (straight, consistent width). We would like to minimize the length of the road between these cities and the bridbe must be constructed perpendicular to the banks of the river. Where to build the bridge as to minimize the total length of the road?

I know two different ways to solve this problem. Can you find both?

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Suppose we have to build a road from city A to city B, but these cities are separated by a river (straight, consistent width). We would like to minimize the length of the road between these cities and the bridbe must be constructed perpendicular to the banks of the river. Where to build the bridge as to minimize the total length of the road?

I know two different ways to solve this problem. Can you find both?

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