February 28, 2017

Homework Help: Pre Calc

Posted by MW on Monday, April 13, 2009 at 9:08pm.

From 2 points 400 yards apart on the bank of a straight river flowing due south, the bearings of a point on the opposite bank are 148 degrees and 28 degrees.

How wide is the river?

I am having a hard time understanding how this is set up.
Help please?

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