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What is the length of the ladder that will reach from the ground over the fence to the wall of the building?

A fence 8 ft tall runs parallel to a tall building at a distance of 4 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? ______ft

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One Response to “What is the length of the ladder that will reach from the ground over the fence to the wall of the building?”

  1. the inclination must be 45°
    the foot of the ladder is 8 ft from the fence and 12 ft from the building
    the length is 12√2
    (the ladder is the diagonal of the square with a 12 ft side)

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