Trigonometry is a branch of mathematics that deals with the relationships between the angles and sides of triangles. It's commonly used to solve problems involving distances, heights, and angles. The three primary trigonometric functions are sine, cosine, and tangent, often denoted as sin, cos, and tan. These functions help in calculating the ratios of the lengths of sides in right triangles. Trigonometry has applications in various fields like physics, engineering, astronomy, and more.

What is trigonometry?
Ans: Trigonometry is Greek word derived from tri( meaning three, gon(meaning sides), metron(meaning measure)
What is trigonometric ratios of the angle?
Ans: Some ratios of the sides and angles of a right triangle with respect to its acute angle are called trigonometric ratios of the angle. There are six trigonometric ratios of the angle; sine, cosine, tangent, cotangent, secant, cosecant.
How to find out
Write the values of trigonometric ratios for some specific angles; 0°, 30°, 45°, 60°, 90°