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Mathematics 7 Online
OpenStudy (anonymous):

A fence 2 ft tall runs parallel to a tall building at a distance of 1 ft 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?

OpenStudy (tkhunny):

Think "Similar Triangles".

OpenStudy (anonymous):

c = √ (2² + 1²) = ...

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