Example 9 - Congruence of Triangles

Last updated at Dec. 16, 2024 by

Example 9 - In Fig 7.31, DA perpendicular AB, CB AB and AC = BD

In ∆ABC and ∆ BAD,

∠A = ∠B

AC = BD

AB = BA

∴ ∆ABC ≅ ∆BAD

Hence,

  ( i ) is correct

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Transcript

Example 9 In Fig 7.31, DA ⊥ AB, CB ⊥ AB and AC = BD. State the three pairs of equal parts in ∆ABC and ∆DAB. Which of the following statements is meaningful? (i) ∆ABC ≅ ∆BAD (ii) ∆ABC ≅ ∆ABD In ∆ABC and ∆ BAD, ∠A = ∠B AC = BD AB = BA ∴ ∆ABC ≅ ∆BAD Hence, (i) is correct

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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 14 years. He provides courses for Maths, Science and Computer Science at Teachoo