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**Many historians refer to Hipparchus as the father of trigonometry, according to the New Mexico Museum of Space History.** Hipparchus was born in about 190 B.C., and he spent most of his life in Rhodes, Greece.

Hipparchus developed a table of chords and used his trigonometric methods to calculate eclipses of the sun and moon. He also created the first listing of stars, dividing them into classes of brightness, a revised system that is still used by modern astronomers. Hipparchus also was the first individual to define a circle as 360 degrees. Much of his life's work centered around trying to accurately determine the length of a year.

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## What is trigonometry used for?

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Full Answer >**Trigonometry is used in many fields of applied and practical sciences, such as astronomy, geography, physics and engineering.**Trigonometry is used in astronomy to determine the distance from Earth to various nearby stars by observing the parallax shift with Earth's orbit around the Sun as a baseline.Filed Under: - Q:
## When was trigonometry invented?

A:Ancient Egyptian and Greek philosophers used an early form of trigonometry that involved calculating chords to obtain the angles of a triangle. This method was effective for Euclidean plane geometry, but the heart of trigonometry, the sine, was developed in India in the sixth century.

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## What is an application of trigonometry?

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Full Answer >**One application of trigonometry in the real world is determining the distance and location of faraway objects.**This is useful in navigation and in surveying. Historically, trigonometry was also applied to determine the position of heavenly bodies, but this use has been supplanted by linear algebra in modern times.Filed Under: - Q:
## Who are the mathematicians who contributed to trigonometry?

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Full Answer >**Trigonometry developed in many parts of the world over thousands of years, but the mathematicians who are most credited with its discovery are Hipparchus, Menelaus and Ptolemy.**Isaac Newton and Euler contributed developments to bring trigonometry into the modern age.Filed Under: