## NCERT Solutions for Class 10 Maths Chapter 8 Exercise 8.1 - FREE PDF Download

NCERT Solutions For Class 10 Maths Chapter 8 Exercise 8.1 - Introduction to Trigonometry

## FAQs on NCERT Solutions For Class 10 Maths Chapter 8 Exercise 8.1 - Introduction to Trigonometry

1. What are the formulas to calculate the trigonometric ratio of the angles?

Consider a right-angled triangle of an acute angle A

sin A = Side opposite to angle A / Hypotenuse

cos A = Side adjacent to angle A / Hypotenuse

tan A = Side opposite to angle A / Side adjacent to angle A

cosec A = Hypotenuse / Side opposite to angle A

sec A = Hypotenuse / Side adjacent to angle A

cot A = Side adjacent to angle A / Side opposite to angle A

are the formulas for calculating the trigonometric ratio of the angles.

2. Why is the Class 10 Trigonometry Exercise 8.1 important?

Class 10 Trigonometry Exercise 8.1 covers the fundamentals of the vast branch of mathematics, namely trigonometry. This concept is crucial for understanding the concepts of the student's higher education irrespective of the stream they choose. These concepts are explained and are broken down to their simplest form in Exercise 8.1 Class 10 Maths Ncert solutions. Learning these concepts by heart helps the students score significantly high in their examinations. As the CBSE Board question paper gives a pretty high weightage to this chapter, it's easy to score well once the concepts are well-learned.

3. How Vedantu NCERT solutions help in examination times?

NCERT solutions of Vedantu help students to frame mind maps of the type of problems that they may encounter in their examination. The mentors of Vedantu train the students to face the exams with confidence. Easier learning of concepts lessens the preparation time, which in turn reflects in the student's Examination tactics. Knowing their strengths and weaknesses helps the student to plan their methodology to attend to the questions with the time constraint in mind.

4. What are the topics discussed in exercise 8.1 ?

Chapter 8 in Class 10 Maths is trigonometry. Trigonometry studies ratios and angles of triangles. Exercise 8.1 of the textbook focuses on the basics of trigonometry. It introduces them to questions with acute angles. It forms a basis for topics that would be discussed in further exercises and classes. It is a fairly easy exercise. The students can find step by step solutions in the solutions PDF provided by Vedantu online on the website.

5. How many questions does Exercise 8.1 have?

Exercise 8.1 is the first exercise in Chapter 8 of Class 10 Maths. The chapter introduces the basics and fundamentals of trigonometry. It is an important topic that is studied in classes ahead as well. There are 11 questions in the exercise discussing ratios and angels. The solutions for all questions can be found in the solution pdf for the reference of students. They are explained in an easy language for the students to understand better.

6. Why is Chapter 8 of Class 10 Maths important?

Chapter 8 of Class 10 is called trigonometry. It introduces students to the basics of the topic and aims at helping them form a strong base. This topic is important as it is discussed in further classes and in colleges as well depending on the subjects chosen by the student. It is a topic that is discussed in daily life as well. The topic requires the concentration of the students and regular practice. The students can score highly in it if they practice enough.

7. How many exercises are there in chapter 8 Trigonometry?

There are a total of four exercises in chapter 8- Exercise 8.1, 8.2, 8.3 and 8.4. The exercises cover all the topics and formulas discussed throughout the chapter. Each exercise covers a few particular topics and formulas. The exercises aim at making the student comfortable and well-versed with the topic. The students can refer to the solutions PDF for answers and extra questions for Trigonometry. Answers to the NCERT textbook exercises are explained step by step in easy language.

8. How should I prepare chapter 8 for the final exam?

Trigonometry requires the students to be thorough and regular with the topic and all the questions in the NCERT textbook. They should also practice extra questions from the PDF to form a stronger base on the subject. Students should regularly revise what they are being taught in school. They should also write down all the formulas so that it is easy for them to revise and they can retain them better. If they understand the topic they will be able to score good marks in the subject.

9. What is the formula for trigonometry 8.1 Class 10?

Here are the key formulas used in this exercise:

Trigonometric Ratios:

$\sin \theta = \dfrac{\text{Opposite}}{\text{Hypotenuse}}$

$\cos \theta = \dfrac{\text{Adjacent}}{\text{Hypotenuse}}$

$\tan \theta = \dfrac{\text{Opposite}}{\text{Adjacent}}$

10. Who invented trigonometry?

The father of trigonometry is Hipparchus