Tue Nov 30, 2010 7:05 am by tartle |
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how to solve the width of the river without crossing it? if you only have a big protractor and a meter stick? |
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Sun Mar 20, 2011 12:33 am by ChibiHoshi |
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Trig if you have line of site.
Look at a tree or rock exactly across, then parallel the river with your meter stick then determine the angle from your new point to the rock/tree.
Tangent of angle = width of river over the length traveled paralleling the river. |
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