# Ex 6.4, 1 - Chapter 6 Class 7 Triangle and its Properties

Last updated at Sept. 10, 2018 by Teachoo

Last updated at Sept. 10, 2018 by Teachoo

Transcript

Ex 6.4, 1 Is it possible to have a triangle with the following sides? (i) 2 cm, 3 cm, 5 cm Given 3 sides 2 cm, 3 cm, 5 cm If these sides form a triangle, them Sum of two sides > Third side Since sum of 2cm & 3cm is not greater than 5cm ∴ Sum of two sides is not greater than third side So, Not possible. Ex 6.4, 1 Is it possible to have a triangle with the following sides? (ii) 3 cm, 6 cm, 7 cmGiven 3 sides 3 cm, 6 cm, 7 cm If these sides form a triangle, them Sum of two sides > Third side Here, Sum of two sides is greater than third side in all three cases So, possible. Ex 6.4, 1 Is it possible to have a triangle with the following sides? (iii) 6 cm, 3 cm, 2 cm Given 3 sides 6 cm, 3 cm, 2 cm If these sides form a triangle, them Sum of two sides > Third side Since sum of 3 cm & 2 cm is not greater than 6cm ∴ Sum of two sides is not greater than third side So, Not possible.

Sum of lengths of two sides of a triangle

Chapter 6 Class 7 Triangle and its Properties

Concept wise

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Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.