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A 20​-foot ladder is placed against a vertical wall of a​ building, with the bottom of the ladder standing on level ground 16 feet from the base of the building. How high up the wall does the ladder​ reach?
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A 20​-foot ladder is placed against a vertical wall of a​ building, with the bottom of the ladder standing on level ground 16 feet from the base of the building. How high up the wall does the ladder​ reach?

User Andrej Lucansky
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1 Answer

3 votes

12 feet up the wall, pythagorean theorem

User Adrian Chen
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