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RD Sharma Class 10 Solutions Chapter 4 - Exercise 4.3

Last updated date: 04th Mar 2024
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IVSAT 2024

Vedantu’s RD Sharma Solutions Class 10 Chapter 4 - Triangles

Free PDF download of RD Sharma Class 10 Solutions Chapter 4 - Triangles Exercise 4.3 solved by Expert Mathematics Teachers on All Chapter 4 - Triangles Ex 4.3 Questions with Solutions for RD Sharma 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. Every NCERT Solution is provided to make the study simple and interesting on Vedantu.


Register Online for Class 10 Science tuition on to score more marks in the CBSE board examination. Vedantu is No.1 Online Tutoring Company in India Provides you Free PDF download of NCERT Solutions for Class 10 Maths solved by Expert Teachers as per NCERT (CBSE) Book guidelines. All Chapter wise Questions with Solutions to help you to revise the complete Syllabus and Score More marks in your examinations. 

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Introduction to the Chapter

Chapter 4 Triangles of Class 10 deal with the many earth Matic operations that can be performed on triangles. The chapter mainly explains in-depth about congruent triangles as two figures which have the same shape but don’t necessarily have the same size also called similar figures. Pythagoras theorem taught in earlier classes comes in handy in this chapter. 


RD Sharma explains the various concepts discussed in this chapter in-depth the innumerable number of practice questions give the students a much-needed boost to get ahead in the class and also helps them to apply theorems quickly. Vedantu acts as a one-stop destination for all your queries and study material that is needed to ace the examination. RD Sharma Class 10 solution Chapter 4 Triangles  Exercise 4.3 can be downloaded for free on the Vedanta website without any hassle.


Important Theorems

Important theorems discussed in Class 10 Chapter Triangles are-

Theorem 1- If a line is drawn parallel to one side of a triangle to intersect the other two sides in distinct points, the other two sides are divided in the same ratio.

Theorem 2- If a line divides any two sides of a triangle in the same ratio, then the line is parallel to the third side.

Theorem 3- If in two triangles, corresponding angles are equal, then their corresponding sides are in the same ratio (or proportion) and hence the two triangles are similar.

Theorem 4- If in two triangles, sides of one triangle are proportional to (i.e., in the same ratio of ) the sides of the other triangle, then their corresponding angles are equal and hence the two triangles are similar.

Theorem 5- If one angle of a triangle is equal to one angle of the other triangle and the sides including these angles are proportional, then the two triangles are similar.

Theorem 6- The ratio of the areas of two similar triangles is equal to the square of the ratio of their corresponding sides.

Theorem 7- If a perpendicular is drawn from the vertex of the right angle of a right triangle to the hypotenuse then triangles on both sides of the perpendicular are similar to the whole triangle and to each other.

Theorem 8- In a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.

Theorem 9- In a triangle, if the square of one side is equal to the sum of the squares of the other two sides, then the angle opposite the first side is a right angle. 

FAQs on RD Sharma Class 10 Solutions Chapter 4 - Exercise 4.3

1. Define congruent triangles as discussed in Chapter 4 of Class 10 Maths.

Congruent triangles can be defined as triangles that have the same size and shape. They have the same area and perimeter the angles of the triangle are equal they have the same corresponding sides. In one country of the congruency of triangles by proving SSS, SAS, AAS, ASE, RHS.

2. What are the topics studied in the Chapter Triangles?

The important topics covered in this chapter are-

  • Similar Figures

  • Similarity of Triangles

  • Criteria for Similarity of Triangles

  • Areas of Similar Triangles

  • Pythagoras Theorem

For a comprehensive understanding of these concepts, it is advisable for the students to get their hands on RD Sharma, whose innumerable questions can help students get a good score in the board examination. These questions along with their study material are available for free on Vedantu’s website and are easily accessible.

3. How can I access the study material and exercise solutions of the RD Sharma book?

The study material and exercise solutions of the addition of books are easily available on Vedantu‘s website the solutions and the study material is available for free download. So that students can take that PDF with them anywhere and they don’t need internet for that. This is done in order to help the students study in a distraction-free environment, away from the Internet.

4. Is RD Sharma enough to get a good score in the exam?

Rd Sharma is based on the CBSE curriculum set by the CBSE. It explains all the numerical problems in detail and gives reasonable solutions, HOTS are questions of higher aptitude, that need more attention and knowledge of the subject. Practising from RD Sharma is more than enough to get a good percentage in the board exams.

5. Explain Pythagoras theorem.

The famous Pythagoras theorem can be defined as the sum of the squares on the legs of a right triangle is equal to the square on the hypotenuse (the side opposite the right angle)—that is a2 + b2 = c2. This basic theorem is needed to grasp the more complex terms and concepts that are taught in higher classes. RD Sharma practice questions of class 10 are tailored in such a way that makes the understanding of different concepts easy and simple.