Friday
August 22, 2014

Homework Help: trigonometry

Posted by Winsel on Saturday, August 14, 2010 at 1:30am.

From lookout tower 80ft. high, a man observes from a position 6.5 ft. below the top of the tower that the angle of elevation of the top of the certain tree is 12deg40mins and the angle of depression of its base is 70deg20mins. If the base oof the tower and the base of the tree are the same level, what is the height of the tree?

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