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August 31, 2015

Homework Help: Physics

Posted by Lili on Monday, September 2, 2013 at 3:22pm.

A surveyor measures the distance across a
straight river by the following methods: Starting directly across from a tree on the opposite
bank, she walks 249 m along the river bank to
establish a baseline. Then she sights across to
the tree. The angle from her baseline to the
tree is 38.2
How wide is the river?

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