## What is Trigonometry ratios

Trigonometry comes from the Greek Word Trigonon (triangle) and metron (to measure).Trigonometry is the branch of mathematics, which describe the relationship between the sides & specific functions of the angle of the triangle.basically, trigonometry defines the ratios of side of tringle, & that ratios are expresses in the term of respective angle function. These angle functions are known as Trigonometry ratios which are expained below with thier formulas.

A triangle where one of its interior angles is a right angle (90 degrees).
Each side of a right triangle has a name:

Where
“a” is the perpendicular or Opposite side,

“b” is the base or Adjacent,

“h” is the hypotenuse side.

### Sine, Cosine and Tangent

The three main functions in trigonometry are Sine, Cosine and Tangent.

Sine: sin(θ) = Opposite Hypotenuse

Where θ is the angle
When we divide Sine by Cosine we get:

tan(θ) = sin(θ)cos(θ)

This is Trigonometric Identities.

### Cosecant, Secant and Cotangent

Cosecant: cosec(θ) = Hypotenuse Opposite