 # NCERT Solutions for class 10 Maths Chapter 6- Triangles Exercise 6.3

## NCERT Solutions For Class 10 Maths Ex 6.3 PDF Free Download

The CBSE Class 10 Chapter 6 Triangles has a total of 6 exercises. The pdf containing the NCERT Solutions of the third exercise, Exercise 6.3, is available here. The solution, apart from the pdf format, is also available below. At BYJU’S, the subject experts solve the questions with utmost care, giving explanation for the steps that are difficult to understand.

There are plenty of questions in the NCERT textbook intended for the students to solve and practice. To score high marks in the class 10 board examination, solving and understanding all the NCERT solutions for class 10 Maths is a must.

### Access Answers of Maths NCERT class 10 Chapter 6- Triangles Exercise 6.3             ### Access other exercise solutions of class 10 Maths Chapter 6- Triangles

Exercise 6.1 Solutions 3 Questions (3 Short Answer Questions)

Exercise 6.2 Solutions 10 Questions (9 Short Answer Questions, 1 Long Answer Question)

Exercise 6.4 Solutions 9 Questions (2 Short Answer with Reasoning Questions, 5 Short Answer Questions, 2 Long Answer Questions)

Exercise 6.5 Solutions 17 Questions (15 Short Answer Questions, 2 Long Answer Questions)

Exercise 6.6 Solutions 10 Questions (5 Short Answer Questions, 5 Long Answer Questions)

## NCERT Solutions for class 10 Maths Chapter 6- Triangles Exercise 6.3

Topic similarity of Triangles is the base of the Exercise 6.3, Class 10 NCERT Maths Chapter 6, Triangles.There are 16 Questions in this exercise, that includes, 1 main question with 6 sub-questions, 12 Short Answer Questions and 3 Long Answer Questions. The Exercise 6.3 deals with 3 theorems, that contains AAA, SSS, SAS criterion. The three theorems that forms the base of the third exercise of Chapter 6 are:

• Theorem 6.3 : 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. This criterion is referred to as the AAA (Angle–Angle–Angle) criterion of similarity of two triangles.
• If two angles of one triangle are respectively equal to two angles of another triangle, then the two triangles are similar. This may be referred to as the AA similarity criterion for two triangles
• Theorem 6.4 : 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. This criterion is referred to as the SSS (Side–Side–Side) similarity criterion for two triangles.
• Theorem 6.5 : 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. This criterion is referred to as the SAS (Side–Angle–Side) similarity criterion for two triangles.

NCERT Solutions are one of the best study materials a student can make use to score great marks in the Class 10 board examination. Students who are thorough with the concepts and are well versed in solving the problems present in the NCERT textbook can easily score great marks in the class 10 board exam as CBSE often asks questions, directly or indirectly, from the NCERT book.