# Why are you studying trigonometry?

**Sommaire de notre article**

- Why are you studying trigonometry?
- Who found trigonometry?
- Who invented trigonometry?
- How to understand trigonometry?
- What is the history of trigonometry?
- Who is the father of trigonometry?
- What are the different types of trigonometry?
- What is Trigonometry?
- What is the difference between geometry and trigonometry?
- What professions use trigonometry?

### Why are you studying trigonometry?

Like every other component of mathematics, literature, or history, the **trigonometry** provides our mind with a framework that makes the perceptible universe more comprehensible every day.

### Who found trigonometry?

The Greek Claudius Ptolemy (90?; 160?) continues in the Almagest the works of Hipparque with better precision and introduces the first formulas of **trigonometry**. Ptolemy believed in geocentrism: the earth is the center of the universe, all the stars gravitate around it.

### Who invented trigonometry?

The Greek astronomer and mathematician Hipparchus of Nicaea (-190; -120) constructed the first trigonometric tables in the form of chord tables: they corresponded to each value of the angle at the center (with a division of the circle in 360° ), the length of the chord intercepted in the circle, for a …

### How to understand trigonometry?

We will remember the little mnemonic trick: SOHCAHTOA. It makes it possible to retain the three formulas: sine = opposite / hypotenuse, cosine = adjacent / hypotenuse and tangent = opposite / adjacent. The cosine, sine and tangent of an angle have no unit.

### What is the history of trigonometry?

L’**story** functions **trigonometric** seems to have started around 4,000 years ago. We know for certain that the Babylonians determined approximations of the measures of angles or the lengths of the sides of right triangles. Several tables of numbers engraved on dried clay bear witness to this.

### Who is the father of trigonometry?

D’Alembert, the great mathematician of the Encyclopédie, gave his definition of **trigonometry** in 1751: it**is** “the art of finding the unknown parts of a triangle by means of those (the parts) that one knows”.

### What are the different types of trigonometry?

The two main branches of trigonometry are plane trigonometry and spherical geometry. Trigonometry is generally concerned with the study of the relationships between the lengths of angles and triangles. What symbols are there in trigonometry?

### What is Trigonometry?

Civil and mechanical engineers use trigonometry to calculate torques and forces on objects such as bridges or building developers. Engineers use trigonometry to break down forces into horizontal and vertical components that can be analyzed.

### What is the difference between geometry and trigonometry?

Trigonometry is a branch of mathematics, just like algebra, analysis or even probability. It is a field of mathematics that relates the measurement of the angles of right triangles to the length of their sides. Trigonometry is therefore intimately linked to geometry.

### What professions use trigonometry?

Trigonometry is used to measure the height of a building or a mountain. Aeronautical trigonometry. Trigonometry in criminology. Trigonometry in marine biology. Trigonometry in navigation. Which 6 professions use trigonometry?