Are you preparing for the Class 10 Maths Board Exam 2020-2021? Are you facing difficulties to solve Chapter 8 Introduction to Trigonometry Class 10 Maths Problems? Don’t worry! Here we are providing RD Sharma Class 10 Maths Solutions Chapter 8 – Introduction to Trigonometry. You can download easily PDF free and boost Class 10 Maths Board Exams.

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## RD Sharma Class 10 Maths Solutions Chapter 8 -Introduction to Trigonometry

You will find all Exercises wise NCERT Solutions for Chapter 8 Class 10 Maths. The materials are created by experts based on CBSE NCERT Curriculum.

You can also download RD Sharma Class 10 Maths Solutions PDF for all chapters to learn to solve the Maths problems and build the depth concept. You can score a better grade in the 2021 board exam by plasticizing NCERT solutions daily.

## CBSE Class 10 Maths Chapter 8 Trigonometry

The first use of the idea of ‘sine’ in the way we use it today was in the work Aryabhatiyam by Aryabhata, in A.D. 500. Aryabhata used the word Ardha-jy for the half-chord, which was shortened to jya or jiva in due course. When the Aryabhatiyam was translated into Arabic, the word jiva was retained as it is.

The word jiva was translated into the sinus, which means curve when the Arabic version was translated into Latin. Soon the word sinus, also used as sine, became common in mathematical texts throughout Europe. An English Professor of astronomy Edmund Gunter (1581–1626), first used the abbreviated notation ‘sin’.

The origin of the terms ‘cosine’ and ‘tangent’ was much later. The cosine function arose from the need to compute the sine of the complementary angle. Aryabhatta called it kotijya. The name cosinus originated with Edmund Gunter. In 1674, the English Mathematician Sir Jonas Moore first used the abbreviated notation ‘cos’.

For more Details download NCERT Class 10 Maths Book PDF

## Exercise-wise RD Sharma Class 10 Maths Solutions Chapter 8 – Introduction To Trigonometry

Getting through the exercise wise NCERT solution is certainly one of the steps that enables one to plan their exams preparation systematically. Hence we are here to manage and sort out the exercises from chapter 8 just for you. Get to the content below-

Topics | Solutions |

RD Sharma Class 10 Chapter 8 Exercise 1A | Exercise 8.1 |

RD Sharma Class 10 Chapter 8 Exercise 1B | Exercise 8.2 |

## Detailed Exercise Explanation Chapter 8 – Introduction to Trigonometry

Trigonometry is one of the essential topics which one needs to work with even after class 10 and so. If you are someone who is planning to achieve something big, then going through the Introduction to Trigonometry is going to help you thoroughly. Have a quick look at the briefings on the exercise-wise NCERT solutions below-

### RD Sharma Class 10 Chapter 8 Exercise 8.1

Since this is the first of the exercise therefore students will get an easy and simpleton view of the vital concept. Here students will get a brief check on the concept of triangles such as right-angled triangle, acute triangle, and more.

In this section, students will study trigonometric ratios for angles of measure 0 degrees and 90 degrees. Here students will have to evaluate trigonometric ratios for some specific angles and establish several identities that include ratios that are termed as trigonometric identities.

### RD Sharma Class 10 Chapter 8 Exercise 8.2

After getting through with ratios you will be able to work on several ratios that involve sides of right triangles and define them as trigonometric ratios. Here subject matter expert explained the chapter in detail with numerous examples for you to build a thorough understanding of the topic.

### RD Sharma Class 10 Chapter 8 Exercise 8.3

Since you have already learned constructing several diagrams from geometry hence constructing angles with 30 degrees, 40 degrees and 60-degree won’t be a trouble at all. This exercise will let you study the trigonometry ratios of the above-mentioned angles with various illustrations and suitable examples.

### RD Sharma Class 10 Chapter 8 Exercise 8.4

Well, two angles are termed as complementary when their sum totals to 90degree. This exercise also covers several important concepts of that sort. Have a thorough check on the RD Sharma Class 10 Maths Solutions Chapter 8 Introduction to Trigonometry to secure some solid marks from this section.

### RD Sharma Class 10 Chapter 8 Exercise 8.5

This exercise teaches about trigonometric ratios of an angle which is termed as trigonometric identities. Study the chapter from RD Sharma Class 10 Maths Solutions Chapter 8 Introduction to Trigonometry PDF and get to the core of the concept.

### RD Sharma Chapter 8 Class 10 Exercise 8.6

This section is basically a summary of the chapter. Make sure to go through the section to learn everything and also it will act as a revision session for you. Therefore grab your copy of RD Sharma Class 10 Maths Solutions Chapter 8 Introduction to Trigonometry PDF and get ready with the maths syllabus in no time.

### Benefits of RD Sharma Class 10 Maths Solutions

- Detailed Explanation of CBSE Chapter-wise Problems with Complete
- Exercises Listed
- A unique way of Explanation
- Helps in Competitive Exams
- Includes Extra and Important Questions

## Other Important CBSE 10th RD Sharma Maths Solutions

You should have NCERT solutions to boost your exam preparation for the Class 10 Maths exam. Click on the link to access other RD Sharma Maths Solutions related to 10th Maths.

- Chapter 1 Real Numbers Solutions
- Chapter 2 Polynomials Solutions
- Chapter 3 Pair of Linear Equations In two Variables Solutions
- Chapter 4 Quadratic Equations Solutions
- Chapter 5 Arithmetic Progressions Solutions
- Chapter 6 Triangles Solutions
- Chapter 7 Coordinate Geometry Solutions
- Chapter 8 Introduction to Trigonometry Solutions
- Chapter 9 Some Applications of Trigonometry Solutions
- Chapter 10 Circles Solutions
- Chapter 11 Constructions Solutions
- Chapter 12 Areas Related to Circles Solutions
- Chapter 13 Surface Areas and Volumes Solutions
- Chapter 14 Statistics Solutions
- Chapter 15 Probability Solutions

Download All CBSE Class 10 Related Content and Study Materials to Make Your Preparation Better and Score Good Marks.