Triangle, the word itself describes its meaning. “Tri” means “three” so a closed figure formed by three intersecting lines is known as a Triangle. Students must have already studied the angle sum property of a triangle in chapter 6 of NCERT Class 9 Maths. Now, inconsequent to it Chapter 7 of NCERT Class 9 Maths will further brief students about the congruence of triangles, and rules of congruence. Also, they will learn a few more properties of triangles and inequalities in a triangle.
Here we have provided the complete solution of NCERT Class 9 Maths Chapter 7 Triangles in PDF format solved by experienced teachers. Students can download the free PDF by clicking on the link below to keep it handy for future reference.
Download NCERT Solutions for Class 9 Maths Chapter 7 – Triangles
Access Answers of Maths NCERT Class 9 Chapter 7 – Triangles
Moreover, students can get the NCERT Solutions for Class 9 Maths of all the chapters.
NCERT Solutions for Class 9 Maths Chapter 7 – Triangles
Triangle is a part of a Geometry. However, the complete Geometry of Class 9 constitutes a weightage of 22 marks out of 80 marks. Have a look at the types of questions that are expected from Geometry in the annual exam of class 9 Maths paper.
NCERT Class 9 Maths Geometry – Marks Distribution |
|||
Topics |
Multiple Choice Questions |
Short Questions |
Long Questions |
Introduction to Euclid’s Geometry, Lines and Angles, Triangles, Quadrilaterals, Areas, Circles, Constructions |
4 Qs of 1 mark each |
2 Qs of 3 marks each |
2 Qs of 6 marks each |
Total Marks |
4 Marks |
6 Marks |
12 Marks |
Students should practice all the questions from the exercise to score high marks in class 9 Maths paper. The step by step solution to all the exercise of NCERT Class 9 Chapter 7 is provided below:
Exercise 7.5 (Optional) Solution
NCERT Solutions for Class 9 Maths Chapter 7 Triangles
In previous classes, students must have used the properties of triangles for solving the questions, but now in NCERT Chapter 7 of Class 9 Maths students will learn how to prove these properties. For solving the questions related to this topic, it is very necessary that student should know the congruence rule. So, firstly go through the theory and then looked at the solved examples that are already there in the book. After that, start solving the questions exercise problems.
Students can also have a look at the NCERT Solutions of Class 9 for Science subject to know the answers of all the chapters with detailed explanation.
Important Concepts Learned in NCERT Class 9 Maths Chapter 7 – Triangles
The aim of including this Triangle chapter in class 9 Maths NCERT textbook is to make students know the following concepts:
- 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 triangle.
We hope this information on “NCERT Solution Class 9 Maths Chapter 7 ” is useful for students. Click on NCERT Solutions to get the solved answers of NCERT book for all the classes. Stay tuned for further updates on CBSE and other competitive exams. To access interactive Maths and Science Videos download BYJU’S App and subscribe to YouTube Channel.