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In the Given Figure, Prove That: (I) ∆ Acb ≅ ∆ Ecd (Ii) Ab = Ed

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Question

In the given figure, prove that:
(i) ∆ ACB ≅ ∆ ECD
(ii) AB = ED

Sum
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Solution

(i) In Δ ACB and Δ ECD,

AC = CE ................(given)

∠ACB = ∠DCE ............(vertically opposite angles)

BC = CD .............(given)

∴ Δ ACB ≅ Δ ECD ..............(S.A.S. Axiom)

(ii) Hence AB = ED ................(c.p.c.t.)

Hence proved.

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Chapter 21: Congruency: Congruent Triangles - Exercise 19

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R.K. Bansal Concise Mathematics [English] Class 7 ICSE
Chapter 21 Congruency: Congruent Triangles
Exercise 19 | Q 5

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