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Answer:In triangle ADE ,
AD = AE [given]
⇒ ∠AED = ∠ADE [angles opposite to equal sides are equal]
⇒ 180 - ∠AED = 180 - ∠ADE
⇒∠AEC = ∠ADB ............(1)
in Δ ABD and Δ ACE
AD = AE [ given ]
∠ADB = ∠AEC [ using (1) ]
BD = CE [ GIVEN ]
Δ ABD is congruent to Δ ACE [ SAS ]
⇒ AB = AC [ CPCT ]
therefore abc is a isosceles triangle
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Hi here is your answer hope it helps:))
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