Laying the Foundation. Geometry. Pythagorean Theorem Applications. Problem #4:
A boy standing on the shore of a lake 1 mile wide wants to reach the fast food restaurant 3 miles down the shore on the opposite side of the lake. If he swims at 2 mph and walks at 4 mph, is it quicker for him to swim directly across the lake and then walk to the restaurant, or to swim directly to the restaurant? how much quicker?
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