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Ex 7.2, 4 - In triangle ABC, A = 30, B = 40 and C = 110. In PQR,

Ex 7.2, 4 - Chapter 7 Class 7 Congruence of Triangles - Part 2

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Question 4 In ∆ABC, ∠A = 30° , ∠B = 40° and ∠C = 110° In ∆PQR, ∠P = 30° , ∠Q = 40° and ∠R = 110° A student says that ∆ABC ≅ ∆PQR by AAA congruence criterion. Is he justified? Why or why not? Here, All the three angles of both triangle are equal. But sides may not be equal. So, triangles may not be congruent. Hence, the student is not justified as AAA is not a congruence criterion

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.