# NCERT Solutions for Class 9 Maths Chapter 7 Triangles In Hindi

To aid students in developing a thorough knowledge of important concepts in Mathematics, chapter-wise NCERT Solutions are made available on the Extramarks educational website. On the Extramarks education portal, subject specialists have prepared credible solutions for Class 9 Maths Chapter 7 Hindi Medium with the comprehension capacity of all candidates in mind. Every theme has been equipped with a strong conceptual foundation owing to the design of NCERT textbooks and solutions. The NCERT Solutions For Class 9 Maths Chapter 7 in Hindi help students comprehend all of the topics, even the more complex ones that are discussed in the textbook.

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The concerns of students who are studying in schools that impart education in Hindi have been taken into consideration when developing the NCERT solutions in Hindi. The fact that the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi for the chapter on Triangles are written in simple, direct, and basic language has several advantages. The NCERT Solutions For Class 9 Maths Chapter 7 in Hindi download option is these solutions’ finest feature. For self-study purposes, Class 9 students can download these solutions whenever it is most convenient for them.

All of the answers to the problems in the textbook exercises are collected in the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi. The subject matter experts, who are exceptionally knowledgeable in Mathematics, have compiled the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi in a step-by-step format after conducting an extensive study on related topics. Where necessary, answers are supplied together with pertinent diagrams, graphs, and pictures. In summary, the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi are very helpful for rapid review before annual exams as well as examination preparation.

**NCERT Solutions for Class 9 Maths Chapter 7 Triangles In Hindi pdf download **

There are a total of five exercises that clarify the subjects listed above in the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi on the chapter of Triangles. These solutions will improve students’ understanding of Triangles and their characteristics.

**NCERT Solution for Class 9 Mathematics Chapter 7- त्रिभुज**

Producing and releasing textbooks for all classes and subjects is the responsibility of the National Council of Educational Research and Training (NCERT). The Central Board of Secondary Education (CBSE) and other state boards recognise the comprehensive topic coverage of NCERT textbooks. For students to be proficient in any topic or subject, they must have a comprehensive conceptual understanding. With the aid of NCERT Solutions in Hindi and English, students will be able to establish a strong foundation in the subject. For students, incorporating NCERT solutions into their learning and studying processes is crucial. For students in grades 1 to 12, NCERT solutions are a great reference and review tool. The Extramarks provide excellent study materials produced by subject-matter specialists. Every question in the NCERT books has a clear, accurate solution provided within Extramarks’ NCERT solutions in a systematic approach. The format and writing style of the responses are appropriate for the knowledge level of each class of students.

To ensure that students cover every topic and are well prepared for the annual exams, the Extramarks website has provided Class 9 NCERT solutions for all topics. As a part of the academic discipline of Science, NCERT solutions are available for Physics, Chemistry, and Biology. Under Social Science, NCERT solutions are available for Economics, History, Civics, and Geography. For ease of understanding and improving academic performance, all of the NCERT Class 9 textbook solutions that a student might need have been provided. Extramarks’ NCERT solutions for Class 9 are written by seasoned professionals with in-depth knowledge of the designated subjects. The solutions provided herein are highly extensive, and the concepts from the textbooks have been painstakingly delineated to improve students’ understanding of the subjects. The goal of these Class 9 NCERT solutions is to simplify scholarly themes for students.

One of the most fundamental two-dimensional geometric forms is the Triangle, which is created by the intersection of three lines. Triangle inequalities are discussed along with the Congruence of Triangles, Laws of Congruence, and several other aspects in NCERT Solutions For Class 9 Maths Chapter 7 in Hindi on Triangles. To ensure that students have a thorough knowledge of Triangles, their varieties, and their characteristics, solutions to Triangles Questions In Hindi PDF have been provided, which begin with a brief introduction to their fundamental components. In addition, crucial concepts, problems, and theorems based on Congruent Triangles and Triangle Inequalities are covered in the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi.

The characteristics of triangles, congruence rules, and criteria for inequalities, as well as various facts and theorems relating to the sum of the angles and lengths of their sides, will be the students’ main takeaways from the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi Triangle. Class 9 Maths Chapter 7 Hindi Medium on Triangles is very helpful in understanding all of the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi.

Important formulas and themes in the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi Triangles are as follows:

The NCERT Solutions For Class 9 Maths Chapter 7 in Hindi comprise a few congruence norms that students should be aware of. The SAS congruence rule, the ASA congruence rule, the SSS congruence rule, and the RHS congruence rule are significant rules. The following is a summary of these four concepts:

- SAS congruence rule

According to the SAS Congruence Rule, two triangles are considered congruent if their two sides and the angle between them are both equal.

- ASA congruence rule

Two triangles are said to be congruent according to the ASA Congruence Rule if their two angles and included sides are equal to each other.

- SSS congruence rule

Triangles are congruent if their three sides are equivalent to those of another triangle, according to the SSS Congruence Rule.

- RHS congruence rule

The RHS Congruence Rule states that two right triangles are congruent if the hypotenuse and one side of one triangle are equal to the hypotenuse and one side of the other triangle.

Students can learn more about Triangles and how to solve various problems by using the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi. These solutions are one of the best academic resources for helping students prepare for their CBSE examinations.

The language used to convey the answers is simple and easy to grasp. As a consequence, students would not have confusion while learning. All of the problems are succinctly and precisely addressed in the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi for the benefit of students.

To do efficient revision, students would not need to scour their NCERT textbooks or lecture notes because the solutions are organised exhaustively and logically. The NCERT Solutions for Class 9 Maths Chapter 7 in Hindi include all of the correctly solved problems as well as key references.

The NCERT solutions cover all the significant issues and provide extensive arguments for each solution that are essential for comprehension. The elaborated pattern is repeated in the NCERT Solutions for Class 9 Maths Chapter 7 in Hindi. As a consequence, students may use the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi to get ready for any examination.

**प्रश्नावली 7.1**

The Congruence of Triangles is a topic covered in the 9 Class Maths Chapter 7 In Hindi Exercise 7.1. Triangle Congruence is a mathematical concept that is utilised extensively in building and design. Students must thus comprehend this subject well since it is extremely relevant in real-life situations, such as when building enormous structures or creating architectural ideas. Application of the concepts of Triangle Congruences may also be seen in geometric art, stepping stone patterns, carpet patterns, and many other designs. Questions in Class 9 Maths Chapter 7 In Hindi Exercise 7.1 are centred on applying the criteria of Triangle Congruences. Students should therefore explicitly understand every facet of Triangle Congruences. It will enable them to confidently respond to each question in this theme. Students will learn the principles of even shapes more effectively with the assistance of their understanding of Triangle Congruences. The solutions to the first exercise have been provided within the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi. It consists of eight questions about congruence rule-based proofs.

**प्रश्नावली 7.2**

Questions based on Triangle properties and associated theorems are included in 9 Class Maths Chapter 7 In Hindi, in Exercise 7.2. Since there are more questions on proving than on solving, students frequently find this theme to be less intriguing. However, gaining knowledge of Triangle characteristics through examples and practice problems will help spark their interest in the subject. The NCERT Solutions For Class 9 Maths Chapter 7 in Hindi explain how to answer these problems in detail, so students can quickly grasp the concepts. The panel of specialists that created the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi, which contains solved Exercise 7.2 problems, has ensured that all ideas are understood clearly and precisely. These answers will provide an accurate method. The NCERT Solutions For Class 9 Maths Chapter 7 in Hindi will aid in their success in the math examination.

**प्रश्नावली 7.3**

The NCERT Solutions For Class 9 Maths Chapter 7 in Hindi are quality learning resources. There are more Triangle Congruence principles discussed in Exercise 7.3. The Side Side Side Congruence Rule (SSS) and RHS are the two main topics of this activity (Right angle- Hypotenuse-Side congruence rule). This exercise has five questions that are based on the validation of these two rules. Students may learn and practise these two rules with the aid of detailed examples and example problems in the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi. Students may learn all the terminologies, definitions, theorems, and example problems in this topic with the aid of the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi. These reliable materials are created to enhance students’ Mathematical competency by subject-matter specialists.

**प्रश्नवाली 7.4**

The Inequalities of Triangles are further discussed in the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi pertaining to Exercise 7.4. With the aid of the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi equipped with comprehensive solutions and clear illustrations, this idea is effectively presented. These tools should be read in depth by students to fully grasp this subject. They will be able to learn how to apply this idea. Additionally, triangle-based inequalities are presented just before the practice problems. They can precisely solve each question and write out the answers by following the step-by-step instructions in the NCERT Solutions for Class 9 Maths Chapter 7 in Hindi. These answers are offered as a PDF file that may be downloaded.

**NCERT Solutions for Class 9 Maths Chapter 7 Triangles In Hindi**

For a firm and well-developed conceptual understanding, which is a prerequisite for the forthcoming board exams, the curriculum of Class 9 serves as the backbone. The syllabus for Class 9 is quite comprehensive and lengthy. Students will need it to review all the topics and concepts for their upcoming examinations. Exams from the ninth grade are also used to gauge students’ intellectual aptitude. Students should be persevering in their efforts and concentrating on their studies at this time. The goal of every NCERT textbook is to support the holistic academic development of students. Remarkably knowledgeable instructors with a thorough understanding of pedagogy and technology have produced the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi as the result of their thorough research. Since it is difficult for students to obtain individual attention in class, Extramarks provides them with a means of doing so. The NCERT Solutions For Class 9 Maths Chapter 7 in Hindi can be used by students to learn independently or in conjunction with other study resources to strengthen their preparedness. Extramarks offers step-by-step solutions to NCERT textbooks through their website. There are 15 chapters in the prescribed NCERT textbook of Mathematics for Class 9.

Chapter 1 Number System

This chapter covers a variety of numbers, including Irrational and Rational Numbers. Additionally, students will learn how to express numbers (Integers, Rational, and Irrational) on an Extended Number Line. This chapter has a total of six exercises that include issues based on all the questions posed in the chapter.

Chapter 2 Polynomials

The term “Polynomial” and a specific kind of algebraic expression known as polynomials are covered in this chapter. A Polynomial is a mathematical statement made up of Variables and Coefficients that may be multiplied, divided, added, subtracted, or exponent in non-negative integers. The chapter also discusses the Factor Theorem and Remainder Theorem and how they are applied in the Factorisation of Polynomials.

Chapter 3 Coordinate Geometry

The ideas of the Cartesian Plane, Coordinates of a point in the xy plane, terminologies, and notations connected with the Coordinate Plane, such as the x-axis, y-axis, x-coordinate, y-coordinate, origin, quadrants, and more, are covered in the chapter Coordinate Geometry. In addition to learning about the ordinates and abscissa of a point in this chapter, students will also learn how to plot and name a point in the x-y plane.

Chapter 4 Linear Equations in Two Variables

This chapter will introduce students to the theme of Linear Equations in Two Variables, axe + by + c = 0, as well as review linear equations in one variable. Additionally, students will learn how to graph a linear equation with two variables.

Chapter 5 Introduction to Euclid’s Geometry

This chapter covers Euclid’s conceptualisation of geometry and makes an effort to connect it to modern geometry. Students learn how to define common geometrical concepts and forms through Introduction to Euclid’s Geometry. With the two tasks included in the chapter, students will gain a stronger understanding of the subject of axioms, postulates, and theorems.

Chapter 6 Lines and Angles

The theorems related to Lines and Angles are the focus of this chapter. The chapter has three activities that, when completed, will help students fully comprehend the ideas it covers. The chapter covers eight theorems as well as four axioms.

Chapter 7 Triangles

Students will learn in-depth information on the Congruence of Triangles, Congruence Rules, various Triangle characteristics, and Triangle Inequalities in this chapter. There are a total of five tasks in this chapter. In this chapter, students will learn how to demonstrate the qualities they learned in past sessions. Additionally, the chapter teaches the students how to use the different congruence principles while addressing the issues. This chapter covers eight different theorems.

Chapter 8 Quadrilaterals

A Quadrilateral is a shape that is created by connecting four points in a specific order. The students delve into the subject of Quadrilaterals in this chapter. Two exercises in the chapter each have one theorem to prove. Nevertheless, there are nine theorems in all that may be applied to address the application- or conceptual-level inquiries made. This chapter explains the Mid-point Theorem, characteristics of Parallelograms, kinds of Quadrilaterals, and the Angle Sum Property of Quadrilaterals to aid students in fully understanding the topics.

Chapter 9 Areas of Parallelograms and Triangles

By examining connections between the areas of geometric forms, assuming they lie on the same base and between the same parallels, this chapter attempts to solidify the understanding of the equations to calculate the areas of various shapes.

Chapter 10 Circles

A circle is a collection of all the points in a plane that are at a set distance from one another. In this chapter, students will learn about things like the Angle Subtended by a Chord at a Point, Equal Chords and their lengths from the Centre, the Angle Subtended by an Arc of a Circle, Cyclic Quadrilaterals, and other terminology connected to circles.

Chapter 11 Constructions

Students will discover several fundamental construction methodologies in this chapter. The technique will subsequently be utilised to build particular types of triangles. The first exercise in this chapter deals with creating a certain angle or its bisector. There are two activities in this chapter.

Chapter 12 Heron’s Formula

The area of a triangle may be determined using Heron’s formula when the lengths of all three sides are known; this formula is covered in the chapter. This approach does not require figuring out the triangle’s angles or other distances. By dividing other polygons into triangles, such as quadrilaterals, this technique may also be used to get the areas of other shapes.

Chapter 13 Surface Areas and Volumes

Students will learn how to precisely calculate the surface areas and volumes of Cuboids and Cylinders in this chapter, expanding their knowledge to include additional objects like Cones and Spheres. In prior sessions, students learned about surface areas and volumes in the chapter Mensuration, which is merely an expanded version of that chapter now.

Chapter 14 Statistics

Statistics is the area of Mathematics that studies the extraction of valuable information. The chapter provides information on various data presentations, including frequency distribution. The chapter also teaches students how to visualise data using a variety of Graphs, including Bar Graphs, Histograms, Frequency Polygons, etc.

Chapter 15 Probability

An experiment event is a grouping of a few results from an experiment. Probability is the measure of an event’s likelihood of occurring. Students will learn how to calculate the likelihood that a specific experiment result will occur in this chapter.

Complete K-12 answers are available from Extramarks for the CBSE, ICSE, and other significant boards. The needs of candidates for competitive examinations like NEET and JEE are also met by Extramarks thanks to the effective fusion of pedagogy and technology. Extramarks serves as a one-stop e-learning destination for all of the requirements of students.

Extramarks allows students to select their preferred learning style by providing both live and recorded sessions. Students are expected to thoroughly read each chapter and comprehend the meanings of all the themes and subtopics. For the chapters to be prepared properly, it is essential to comprehend the guiding concepts of each chapter. The greatest method to comprehend the fundamental ideas of Mathematics is to solve problems. Before going on to the more difficult questions, students should answer the simpler ones. Before starting their study for the Mathematics examination, students must become familiar with the syllabus. To develop a plan for learning the Mathematics chapters, the syllabus is required.

The Extramarks is their greatest resource for obtaining all of the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi for all exercises and chapters. Naturally, students will find the solutions to be really helpful before their tests. They can study the subject and better prepare for the exams by using the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi. They can get assistance, shortcuts, step-by-step preparation guidelines, and more in addition to the solutions. They can greatly benefit from the Class 9 Math Chapter 7 Solution In Hindi in their effort to better understand the problems and potential responses. These solutions would also be useful when students study the basic concepts and equations just before the examinations.

Students must have utilised the Properties of Triangles in earlier classes to answer problems, but in Class 9 Maths Chapter 7 Hindi Medium, students will learn how to prove these properties. Students must be familiar with various Congruence rules to solve questions on this subject. Therefore, students are advised to go through the theory first and then have a look at the already-solved cases in the book. For any doubt, students could access the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi. Students could download the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi and English from Extramarks. The Extramarks website offers NCERT Solutions For Class 9 Maths Chapter 7 in Hindi that are written in a clear, simple style that is easy to learn. Additionally, one can get the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi in PDF format from the Extramarks website. Highly qualified educators at Extramarks offer NCERT Solutions For Class 9 Maths Chapter 7 in Hindi, which students can download at their convenience. These would help in rectifying errors.

Extramarks provides the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi. The NCERT Solutions For Class 9 Maths Chapter 7 in Hindi are produced by subject matter specialists and are highly beneficial for students.

## FAQs (Frequently Asked Questions)

### 1. What are the main concepts covered in the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi?

The important concepts covered in the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi are:

- Congruence of triangles.
- Criteria for congruence of triangles (SAS congruence rule, ASA congruence rule, SSS congruence rule, RHS congruence rule).
- Properties of triangles.
- Inequalities of triangles.

The above concepts are descriptively explained in the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi. Students can download the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi from the Extramarks website in PDF form.

### 2. Why are the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi important?

The National Council of Educational Research and Training (NCERT) has a long history of providing top-notch scholarly reference materials. To provide the greatest outcomes, the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi are created inc accordance with the format of the NCERT textbooks. The NCERT Solutions For Class 9 Maths Chapter 7 in Hindi are well-organised and follow a clear pattern to provide exact information on each topic.

### 3. How many questions are there in the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi?

The NCERT Solutions For Class 9 Maths Chapter 7 in Hindi pertaining to Triangles have solutions to 31 problems. 29 of these are predicated on demonstrating the Congruence and Inequality of Triangles. The last three questions are the steps to building the triangles that are necessary to comprehend this subject.

### 4. What are the core formulas in the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi?

Students should know key theorems, definitions, concepts, and principles related to the Congruence of Triangles that are included in the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi. The SAS, ASA, SSS, and RHS congruence rules are a few of these principles. The angle sum property, which states that the sum of a Triangle’s three angles is always equal to 180 degrees, is one of the other crucial ideas presented in the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi.

### 5. Is it necessary to practice the solutions embedded in the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi?

Triangles’ characteristics and their congruency are meticulously framed in the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi. By working through all the simple issues in these answers, students can gain a deeper understanding of this subject. Additionally, The NCERT Solutions For Class 9 Maths Chapter 7 in Hindi will support students’ increased interest and capacity for learning.

### 6. Why should one practice the NCERT Solutions For Class 9 Maths Chapter 7 in Hindi Triangles?

By improving their understanding of the basics of Triangles and their characteristics with the aid of NCERT Solutions For Class 9 Maths Chapter 7 in Hindi, the morale of students will increase.