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# The Use of Trigonometry in navigation

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## Andy Davila

on 13 December 2013

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#### Transcript of The Use of Trigonometry in navigation

The use of Trigonometry in navigation
Purpose
Trigonometry was developed for use in sailing as a navigation method used with astronomy. The origins of trigonometry can be traced to the civilizations of ancient Egypt, Mesopotamia and India more than 4000 years ago.
How is it used?
Trigonometry is used by setting directions such as north south east west, it tells you what direction to take with compass to get on a straight direction.
Trigonometry is used in navigation in order to pinpoint a location. Usually, this is done by means of three different coordinates. One example of trigonometry in navigation is the sextant.
A Sextant is a navigational instrument containing a graduated 60-degree arc, used for measuring altitudes to determine latitude and longitude.
Spherical Trigonometry
It is the branch of trigonometry concerned with the measurement of the angles and sides of spherical triangles.
It is used for planning long distance routes around the world. This form of trigonometry helps get to a location faster.
What is the importance
Example
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