Home » Maths » Trigonometric Ratios (T-Ratios) – Definition, Formulas

# Trigonometric Ratios (T-Ratios) – Definition, Formulas

There are 6 t-ratios ( trigonometric ratios) for right angle triangle are:

• Sine(sin)
• Cosecant(Cos)
• Tangent(Tan)
• Cosecant(Cos)
• Secant(Sec)
• Cotangent(Cot)

Trigonometry definition: It is that category of mathematics which deals with the measurement angles and the queries allied with angles.

## Trigonometric Ratios

The ratios among separate sides of a right-angled triangle concerning its acute angles are called trigonometric ratios.

The different three sides of the right-angled triangle are:

• Perpendicular (opposite side to the angle)
• Hypotenuse (the longest side)
• Base (Adjacent side to the angle)

## How to Find Trigonometric Ratios?

Let ∠ BAC = θ be an acute angle of a right angled Δ ABC. In right-angled Δ ABC , let

AB = Base (B),

AC= Hypotenuse (H) and

BC = Perpendicular (P) ## Trigonometric Ratios Table of Some Specific Angles

Here is the table of trigonometric ratios for some given angles such as 0 °, 30 °, 45 °, 60 °, and 90°, that is mostly used in mathematical calculations. 