The Puzzle of the Bridge

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Where should a bridge be built across a river separating Jack and Jill in order that the path from one to the other be as short as possible? (Assume that the bridge is perpendicular to the river.) This Demonstration shows where to place the bridge as you vary the positions of Jack and Jill.

Contributed by: Jaime Rangel-Mondragon (March 2011)
Open content licensed under CC BY-NC-SA




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