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Desert rally publié le 16/03/2016 - mis à jour le 17/03/2016
Geo has been driving his four-wheel drive with great difficulty in the desert since dawn. At the moment, he is at a distance of 100 kilometres from Mathstown and 120 kilometres from Computown. He knows that these two towns are linked by a 100 - kilometre track. This track is straight and suitable for motor vehicles.
What distance must Geo cover to reach that track ?
![desert desert](sites/math/IMG/jpg/desert.jpg?1457279670)
D’après le Rallye Poitou Charente 1995