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In the given figure, AB ⊥ BE and FE ⊥ BE. If BC = DE and AB = EF, then ΔABD is congruent to

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Question

In the given figure, AB ⊥ BE and FE ⊥ BE. If BC = DE and AB = EF, then ΔABD is congruent to

Options

  • ΔEFC

  • ΔECF

  • ΔCEF

  • ΔFEC

MCQ
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Solution

ΔFEC

Explanation:

It is given that

In the figure, AB ⊥ BE, FE ⊥ BE

Now, BC = DE.

Adding DC to both the sides, we get,

⇒ BC + DC = DE + DC

⇒ BD = CE

In ΔABD and ΔCEF

BD = CE (Proved)

AB = FE (Given)

∠ABD = ∠FEC (Each 90°)

∴ ΔABD ≅ ΔFEC by SAS congruence rule.

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Chapter 12: Congruent Triangles - Exercise 12.8 [Page 86]

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R.D. Sharma Mathematics [English] Class 9
Chapter 12 Congruent Triangles
Exercise 12.8 | Q 13 | Page 86

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