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Class 10 Maths Chapter 6 Triangles NCERT Solutions

NCERT Solutions for Class 10 Maths Chapter 6 Triangles cover similarity of triangles, important theorems, and proofs. It will help you build a clear understanding of geometric relationships and their application in solving problems effectively.
authorImageAnanya Gupta5 May, 2026
NCERT Solutions for Class 10 Maths Chapter 6

NCERT Solutions for Class 10 Maths Chapter 6, Triangles, focus on understanding the properties of triangles and how they are related through similarity, as outlined in the CBSE Class 10 Maths syllabus .

The chapter emphasises key theorems and their applications, helping in building a strong foundation in geometry.

The solutions are structured to present each step of reasoning in a clear and logical manner, making it easier to follow proofs and apply concepts correctly.

This approach supports better understanding, improves accuracy, and helps in writing well-structured answers in exams.

Chapter 6 Triangles Overview and Key Concepts

Chapter 6 focuses on understanding how triangles are related to each other through similarity and proportional reasoning.

You will deal with geometric logic, learning when two triangles can be considered similar and how their corresponding sides are connected.

Key ideas like the Basic Proportionality Theorem and properties of similar triangles are used to establish relationships between lengths and areas. The chapter also highlights how ratios play an important role in comparing figures of the same shape but different sizes. 

Overall, it strengthens logical thinking and you approach geometry problems with clarity and confidence.

Chapter 6 Triangles Exercise Solutions

To get comfortable with proofs and applications, it’s important to practise every question carefully. The solutions are arranged to help you understand the logic behind each step. 

NCERT Solutions for Class 10 Maths Chapter 6 Triangles Exercise-wise Links

Triangles Class 10 Exercise 6.1

Triangles Class 10 Exercise 6.2

Triangles Class 10 Exercise 6.3

How to Prepare Class 10 Chapter 6 Triangles Using NCERT Solutions?

Chapter 6 Triangles requires a slightly different approach compared to algebra:

  • Focus on concepts: Start with the ideas given in the  Class 10 Maths syllabus, especially similarity and proportionality.

  • Understand proofs: Instead of memorising, try to follow the logic behind each theorem.

  • Practise diagrams: Draw neat and accurate figures to visualise problems better.

  • Check your understanding: Use MCQs for Class 10 Maths Chapter 6 to test concepts.

  • Solve PYQs: Practise class 10 Maths previous year questions (PYQs) to see how proofs are asked in exams.

  • Revise regularly: Go through important concepts and theorems to retain them. 

Triangles Full Chapter 6 Video

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NCERT Solutions for Class 10 Maths Chapter 6 FAQs

What are the basic properties of a triangle?

A triangle has three sides, three angles, and the sum of interior angles is 180°. Understanding these is key in triangles class 10.

What is the Pythagorean theorem and how is it used?

In a right-angled triangle, a2+b2=c2a^2 + b^2 = c^2a2+b2=c2. It’s used to find missing sides in class 10 triangles exercise 6.4 problems.

What are the different types of triangles?

Based on sides: equilateral, isosceles, scalene. Based on angles: acute, right, and obtuse.

What are the congruence criteria for triangles?

Triangles are congruent using SSS, SAS, ASA, RHS rules. Practising class 10 triangles exercise 6.2 helps mastery.

How do we find the area of a triangle?

The area of a triangle can be calculated using the formula: Area = 1/2 * base * height, where the base is the length of the bottom side of the triangle and the height is the perpendicular distance from the base to the opposite vertex.
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