A fence 6 feet tall runs parallel to a tall building at a distance of 2 feet from the building.?
A fence 6 feet tall runs parallel to a tall building at a distance of 2 feet from the building. What is the length of the shortest ladder that will reach from the ground over the fence to the wall of the building?
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seven feet
All you need is a^2+b^2=c^2 and know the law of sines.