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OpenStudy (anonymous):
will fan and medal. John is standing 21 meters from the wall of a building. The angle of elevation from his feet to the top of the wall is 30 degrees, as modeled in the diagram. What is the height of the wall, x? Round your answer to the nearest whole meter.
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OpenStudy (anonymous):
OpenStudy (sweetnikkie072):
cot theta=base/perpendicular cot 30º=21/x; cot 30=√3 bring x on LHS x=21/√3(height)
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