   # Astronomy and Trigonometry

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Trigonometry and astronomy
Trigonometry is used everywhere in our lives, since the beginning of development in our civilisations, people have been researching about the three lengths that have mystified for centuries. Trigonometry can almost be seen everywhere. First of all though we need to know its international definition, trigonometry is a study of triangles and its sides and angles, the hypotenuse, the adjacent side and the opposite side. Trigonometry also has its different functions (cos, sin and tan) which have an essential relationship with the whole theme, they used in their specific situations when trying to uncover an unknown value. Mathematically it is mainly used for calculus (which is perhaps its greatest application), linear algebra, and statistics.The name its self comes from Greek descent, trigonometry itself means triangle and measure in Greek. They weren 't the actual discoverers of trig but they implied vast development and improvement in that subject for many years with the help of mathematicians and philosophers like Pythagoras, whom we know very well. The Greek used their findings with much of their architecture and geography but mainly for their interest in the sky, astronomy. Everything that may lie for away across the universe is part of astronomy, the studies of the universe, it heavily needs the help of trig for several reasons

With astronomy we 're dealing with matter far away in the universe we can only observe which is why trig plays such a big role. With trig we can start to calculate distances between matter and the angles at which they are facing the earth. This is how the Greeks started with the Pythagoras theorem (seen on the right). Although nowadays we mostly use the trig laws and theorems, SIN ( finding the rise O/H), COS( finding the run A/H) and TAN( finding the slope O/A). With these functions many immeasurable distances can be found by knowing two distances or a distance and an angle. Astronomers

Bibliography: Works Cited "Applications of Trigonometry." Applications of Trigonometry. N.p., n.d. Web. 30 May 2013. . "Google." Google. N.p., n.d. Web. 30 May 2013. . "Parallax." Wikipedia. Wikimedia Foundation, 19 May 2013. Web. 30 May 2013. . "Trigonometric Functions." Wikipedia. Wikimedia Foundation, 27 May 2013. Web. 30 May 2013. .

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