# The Forts Problem Aim: To get the soldiers from the North Fort to the South Fort in the shortest distance.

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The Forts Problem Aim: To get the soldiers from the North Fort to the South Fort in the shortest distance

River 100 metres 1000 metres North Fort South Fort 800 metres 500 metres The soldiers can walk diagonally to the river They must cross the river perpendicular to the river bank Then they can walk diagonally to the South Fort Where must they build the bridge so that they walk the shortest distance?

River 100 metres 1000 metres North Fort South Fort 800 metres 500 metres What if the horizontal distance of the bridge from the North fort is 100m? 100m 900m How can we calculate the total distance walked by the soldiers?

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