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RD Sharma Class 9 Solutions Chapter 12 - Herons Formula (Ex 12.2) Exercise 12.2

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Last updated date: 24th May 2024
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RD Sharma Class 9 Solutions Chapter 12 - Herons Formula (Ex 12.2) Exercise 12.2 - Free PDF

Free PDF download of RD Sharma Class 9 Solutions Chapter 12 - Herons Formula Exercise 12.2 solved by Expert Mathematics Teachers on Vedantu.com. All Chapter 12 - Herons Formula Ex 12.2 Questions with Solutions for RD Sharma Class 9 Maths to help you to revise the complete Syllabus and Score More marks. Register for online coaching for IIT JEE (Mains & Advanced) and other engineering entrance exams.


RD Sharma is considered as the best book for the annual exams but also board and competitive exams like NEET and JEE. This book clears all your concepts whether it is from a board or an objective point of view. Once you have all your concepts cleared it is very easy for you to solve the paper and score well in the examination. So when you are preparing for the CBSE board or NEET or JEE examination you should start practicing directly from RD Sharma.


RD Sharma will clear and strengthen your understanding of all concepts of a particular chapter which will help you to get a good grip over the subject and the practice problems mentioned in this book will further help you to score well in the examination. RD Sharma is an excellent supplementary book to boost your understanding and overall performance of the subject across different important exams.

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Competitive Exams after 12th Science

Some Basics about Heron's Formula:

  • In geometry, this Heron's Formula which is named after the hero of Alexandria gives us the area of the triangle when we are not provided with the information of all three sides.

  • This formula is useful because like all the other formulas of triangles we don't need to find all the angles or other distances of the triangle.

  • There are several ways that can prove Heron's formula, like by using trigonometry or incentre and one incircle of triangle and others. 

  • Heron's formula is indeed a unique case of formulas to find the area of a trapezoid or trapezium based only on its sides.

All this knowledge about Heron's formula, several ways which can be used, examples, and other details are provided in RD Sharma. You can solve the questions and get detailed information on all these topics with the solutions provided by Vedantu.

FAQs on RD Sharma Class 9 Solutions Chapter 12 - Herons Formula (Ex 12.2) Exercise 12.2

1. How can I prepare Heron's Formula Chapter for JEE and board examination?

JEE and board examinations both follow different patterns. As you need to solve the whole problem stepwise in the theoretical exam but when it comes to the JEE examination, it is an objective type paper and even shortcuts will work here, and using shortcuts will be useful here as it will save your time. You can go for RD Sharma for the preparation of this chapter as it will help you to prepare to the best of your abilities.

2. What is the benefit of having an RD Sharma solution for chapter 12 of Heron's formula?

Heron's Formula is a tricky chapter and to have a good grip over this chapter you need to practice many questions. RD Sharma provides you with questions that you can practice to get the concepts clear in your mind. You can take help from the solutions of this chapter provided by Vedantu as these solutions are designed by experts to assist you. These solutions also have mentioned shortcuts to make it easier for you to solve these practice sums.

3. How can I prepare mathematics from the RD Sharma book for JEE mains?

If you are preparing for JEE Mains, RD Sharma will be a great help for you. RD Sharma has cleared all the concepts from basic to all the important concepts. It is the best book that you can follow for board and JEE preparation. It provides you with a variety of practice problems that will help you to increase your clarity about the topics. There are solutions provided on Vedantu for these practice problems that will help you while solving these questions as they are designed by experts for your help.

4. Is NCERT enough for the preparation for entrance examinations like JEE and NEET?

JEE, NEET as well as boards strictly follow the NCERT. But it is a fact that for mathematics you need to solve and practice a lot of questions and there are only limited questions in NCERT. Besides this NCERT doesn't have a detailed explanation of all the concepts so it will be necessary for you to refer to books like RD Sharma which has a detailed explanation of all the topics.

5. How should I solve the practice problems provided at the end of all the chapters by RD Sharma?

To revise and test your knowledge of the chapter you need to solve the practice problems provided at the end of each chapter. This also clears your doubt regarding the chapter as the solutions help you when you get stuck with a question. First, solve the problems related to a concept and then refer to these easy solutions and shortcuts to see what you did right or wrong and also learn tricks that will make your work easy. Then the next time practice these questions without referring to the solutions and be sure to set a timer for time management.