Question

repost

solve this one mate ​

Answer 1

Answer:

Given : ∠D = ∠E → (1)

AD/DB = AE/EC

Prove : ∆BAC is Iscosceles Triangle OR ∠B = ∠C.

Proof : In ∆ABC,

∠D = ∠B → (2)

∠E = ∠C → (3)

(REASON : CORRESPONDING ANGLES)

From (1), (2) and (3) :

∠D = ∠B = ∠E = ∠C

Thus, ∠B = ∠C.

Therefore, ∆BAC is Iscosceles Triangle.