# Example 4 - Chapter 7 Class 7 Congruence of Triangles

Last updated at Sept. 19, 2018 by Teachoo

Last updated at Sept. 19, 2018 by Teachoo

Transcript

Example 4 Given below are measurements of some parts of two triangles. Examine whether the two triangles are congruent or not, by using SAS congruence rule. If the triangles are congruent, write them in symbolic form. Here, B ⟷ E A ⟷ F C ⟷ D In ∆ABC and ∆FED AB = FE ∠B = ∠E BC = ED ∴ ∆ABC ≅ ∆FED Example 4 Given below are measurements of some parts of two triangles. Examine whether the two triangles are congruent or not, by using SAS congruence rule. If the triangles are congruent, write them in symbolic form. Here, ∠ A ≠ ∠ D Since, angle between sides is not equal, Therefore, we cannot say if ∆ABC and ∆DEF are congruent or not. Example 4 Given below are measurements of some parts of two triangles. Examine whether the two triangles are congruent or not, by using SAS congruence rule. If the triangles are congruent, write them in symbolic form. Here, ∠B & ∠E are not the angles between the equal sides Therefore, we cannot say if ∆ABC and ∆DEF are congruent or not.

SAS Congruency Criteria

About the Author

Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.