Tuesday
March 31, 2015

Homework Help: algebra

Posted by alex on Tuesday, July 19, 2011 at 11:01am.

a point on one bank he finds the angle of elevation of the top of a tree on the other bank to be 60 degress. from his initial observation point he walks back 200 feet in a straight line with the tree and his first observation point and finds the angle of elevation to the top of the tree to be 40 degress. what is the width of the river?

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