# RD SHARMA Solutions for Class 10 Mathematics Chapter 5: Trigonometric Ratios

Trigonometry is a topic that finds its importance in mathematics and subjects like Physics and higher studies. Moreover, it finds its applications in various real-life situations and finds solutions for such problems. Trigonometry is a vast topic and is divided into various sections for a better understanding of the topic. This section deals with basic trigonometric ratios and specific problems related to them.

This chapter deals with studying the different trigonometric ratios and their basic applications in solving questions related to triangles. For instance, it is applied to identify the opposite side, adjacent side, and the hypotenuse of a right-angled triangle based on a particular angle.

Chapter 5- Trigonometric ratios explain briefly the methods involved in finding the values of a given right-angled triangle's Trigonometric ratios. It also solves problems related to finding the values of different sides of a triangle based on the given data or finding the missing angles, etc.

The chapter is concluded with the explanation of a method to find the trigonometric ratio values in degrees for a certain regular angle like 0°, 30°, 45°, 60° and 90°.

There is also a separate mention of Trigonometric ratios for the degrees of 0° and 90°. These are used to explain in detail how the values of the trigonometric ratios change as the size of the angle decreases or increases.