Question

Explain trigonometry simple language

Answer 1

HOLA

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Trigonometry is the study of a right triangle

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In a right triangle we have

❤> Three sides , three vertex

❤> Three angles

❤> One hypotenuse , one base , one perpendicular line

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HOPE U UNDERSTAND ❤❤❤

Answer 2

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Trigonometry, as the name might suggest, is all about triangles.

More specifically, trigonometry is about right-angled triangles, where one of the internal angles is 90°. Trigonometry is a system that helps us to work out missing sides or angles in a triangle.

There is more about triangles on our page on Polygons should you need to brush up on the basics before you read further here.

Right-Angled Triangles: A Reminder

The side opposite θ is called the opposite.

The side next to θ which is not the hypotenuse is called the adjacent.

Introducing Sine, Cosine and Tangent

There are three basic functions in trigonometry, each of which is one side of a right-angled triangle divided by another.

The three functions are:

Name Abbreviation Relationship to sides of the triangle

Sine Sin Sin (θ) = Opposite/hypotenuse

Cosine Cos Cos (θ) = Adjacent/hypotenuse

Tangent Tan Tan (θ) = Opposite/adjacent

Calculating Sine, Cosine and Tangent

You may find it helpful to remember Sine, Cosine and Tangent as SOH CAH TOA.