NCERT Solutions for Class 9 Maths Chapter 7 Triangles Exercise 7.4

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NCERT Solutions for Class 9 Maths Chapter 7 Triangles (Ex 7.4) Exercise 7.4

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NCERT Solutions Class 9 Maths Chapter 7 Exercise 7.4 explains the students about the latest concept of triangles that deal with angles of triangle and congruence of sides. It helps them understand the similarities between the two triangles. Students get required help through the Ex 7.4 Class 9 Maths NCERT Solution to know the concept in detail. They will also learn about the difference in two triangles through the inequalities between them. Students will get chapter-wise assistance provided in the NCERT Solutions for Class 9 Maths Chapter 7 Exercise 7.4. The detailed study material available can be accessed anytime to get an in-depth understanding. Students can also avail of NCERT Solutions Class 9 Science from our website.


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Chapter 7-Triangles part-1
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FAQ (Frequently Asked Questions)

Q1. What are the Theorems Covered in Class 9 Maths Ch 7 Ex 7.4?

Ans: The Exercise 7.4 Class 9 Maths incorporates theorems and questions related to the topic “Inequalities of the Triangle”. There are three main theorems that are explained exclusively in this Class 9 Maths Exercise 7.4. These are as follows:

  • Theorem 1: The sum of sides of any triangle is greater than that of the third side. 

  • Theorem 2: If two sides of a given triangle are unequal, the angle opposite to the longer side is greater (longer). 

  • Theorem 3: In any triangle, the side opposite to the greater angle is found to be the longest.

There are a total of 6 sets of questions available in Exercise 7.4 Maths Class 9. These questions are based on the above-mentioned three theorems. Students need to have a command on these theorems before they opt for answering any questions in this chapter.

Q2. What are the Different Concepts of Triangles Students can Learn in this Chapter?

Ans: In Class 9th Maths Chapter 7 Exercise 7.4, students can learn interesting concepts related to the “Triangles and its Properties”. This chapter of Exercise 7.4 Maths Class 9 has a total of 5 exercises with problems based on the following concepts.

  • Altitude of Triangles.

  • Medians of Triangles.

  • Angle Sum Property in Triangles.

  • Exterior Angle of a Triangle and its Properties.

  • Total of the Length of Two Sides of a Triangle.

  • Two Special Triangles: Isosceles and Equilateral Triangles.

  • Pythagoras Theorem and Right-Angled Triangles.

It is important for the students to learn all these concepts so that they can score better marks in the examination. They must practice these topics consistently so that they can apply it at the time of solving the problems.