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Old October 15th, 2008, 05:37 PM
Robd Robd is offline
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Default Help with angles and hieght.

Hi, I need help with one question, I'm completely confused, so please show me how to work it out. Thanks in advance.


Question:
From point D, the angle of elevation of a cliff top (F) is 42 degrees. After walking 85m along a street inclined at 11 degrees (D to E), the angle of elevation from point E is 55 degrees.
Work out angles FDE and DEF.
Find the height of the cliff.
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