Trigonometry is a branch of mathematics that deals with the study of triangles and the relationships between the sides and angles of triangles. The word "trigonometry" comes from the Greek words "trigonon," which means "triangle," and "metron," which means "measure."

Trigonometry has a long history, with its origins dating back to ancient civilizations such as the Egyptians, Babylonians, and Indians. These early cultures used trigonometry for practical purposes such as surveying land and constructing buildings.

The first known work on trigonometry was done by the ancient Greek mathematician Hipparchus, who lived in the 2nd century BC. Hipparchus developed a system of trigonometry that was based on the concept of chords, which are segments within a circle that connect two points on the circumference of the circle.

In the 3rd century AD, the Greek mathematician Ptolemy wrote a treatise on trigonometry called the "Almagest," which was a comprehensive guide to the field. The "Almagest" was influential for centuries and was used by many other mathematicians and astronomers.

During the Middle Ages, trigonometry was further developed by Islamic mathematicians such as Abu Kamil and Muhammad ibn Musa al-Khwarizmi. These mathematicians made significant contributions to the field, including the development of trigonometric functions and the use of trigonometry in celestial navigation.

Trigonometry continued to evolve over the centuries, and in the 16th and 17th centuries, European mathematicians such as John Napier and Isaac Newton made significant contributions to the field. In the 19th and 20th centuries, trigonometry was further developed and refined, leading to the modern version of the subject that we know today.

In summary, the word "trigonometry" has its roots in the Greek language and refers to the study of triangles and the relationships between the sides and angles of triangles. Trigonometry has a long history, with its origins dating back to ancient civilizations and has been developed and refined over the centuries by a variety of mathematicians and astronomers.

## Trigonometry Definition & Meaning

Although trigonometry has contributed greatly to these careers, it was made to be broadened and applied to everything in our world, right down to our vision. Glen Van Brummelen tells the story of trigonometry as it evolved from an instrument for understanding the heavens to a practical tool, used in. Article by Leo Rogers. His major contribution in mathematics Nasr, 1996, pp. They were historically known as Hela people Sinhala:. The term "trigonometry" was derived from Greek trignon, "triangle" and metron, "measure". He completed these studies in 1726.

## History of trigonometry

Joseph Hunt History of Mathematics Rutgers, Spring 2000. The history of applications of trigonometry: Surveyors have used trigonometry for centuries. This was done in increasing degrees of 71. What is the best way to learn trigonometry? Such as the distance between the earth and the moon, or for distances that can be measured directly, or the distance from one continent to another. Trigonometry is the branch of mathematics that deals with the study of the relationship between the sides of a triangle right-angled triangle and its angles. To be more precise, we are not talking about the literal measurement of this figure, but about its solution, that is, determining the values of its unknown elements with the help of known ones.