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  1. Chapter 7 Class 7 Congruence of Triangles
  2. Serial order wise
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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 8 years. He provides courses for Maths and Science at Teachoo. You can check his NCERT Solutions from Class 6 to 12.