Functions sine, cosine, tangent, cotangent, secant and cosecant of angle A of any given triangle ABC are called trigonometrical functions or trigonometrical ratios.

## Introduction to Trigonometry, Angles and Their Measurement

Introduction: Hello there maths lovers, in this post today you all will learn about the trigonometry and its definition along with angles, its types and different measurement systems. Please feel free comment your suggestions and questions down in the comments below. Happy Maths to You. Trigonometry: The word trigonometry is taken from Greek words ‘trigon’ […]