CBSE · NCERT · Class 7 Maths · Chapter 6

NCERT Solutions: Class 7 Maths Chapter 6 - The Triangle and its Properties

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Chapter-wise NCERT intext questions and exercise answers for The Triangle and its Properties, grounded in the official textbook.

Questions are taken verbatim from the NCERT textbook; answers were grounded against the chapter's content during generation. Items needing review are marked.
Sections in this chapter
Exercise 6.4 1
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1Exercise 6.41 questions
Q.1-6Exercise 6.4 asks whether triangles can be constructed from given side lengths and uses the triangle inequality property.v
Solution

In a triangle, the sum of any two sides must be greater than the third side. If two sides are 15 and 12, the third side must be greater than $15-12=3$ and less than $15+12=27$.

Answer:

1. (i) Not possible (ii) Possible (iii) Not possible.
2. (i) Yes (ii) Yes (iii) Yes.
3. Yes.
4. Yes.
5. Yes.
6. The third side must be between 3 and 27.