# Example 8 - 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 8 Given below are measurements of some parts of two triangles. Examine whether the two triangles are congruent or not, using RHS congruence rule. In case of congruent triangles, write the result in symbolic form: ∆ABC ∆PQR (i) ∠B = 90°, AC = 8 cm, AB = 3 cm ∠P = 90°, PR = 3 cm, QR = 8 cmIn ∆ABC & ∆RPQ, ∠B = ∠P AC = RQ AB = RP ∴ ∆ABC ≅ ∆RPQ Example 8 ∆ABC ∆PQR (ii) ∠A = 90°, AC = 5 cm, BC = 9 cm ∠Q = 90°, PR = 8 cm, PQ = 5 cm Here, Hypotenuse BC and RP are not equal Thus, Triangles are not congruent by RHS Congruency ∴ ∆ABC ≇ ∆QRP

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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.