Question

in a triangle ABC ad is the bisector of angle BAC and also bisect the sides BC to prove that an ABC is an isosceles triangle

Answer 1

Hey,
Given- triABC
To prove-ABC is an isoceles triangle
Proof-
In triangle ADB and triangle ADC,<DAB =<DAC
BD=DC
AD=AD
:.triADB=tri.ADC (SAS CON.)
:.AB=AC(C.S.C.T)
Since both sides of a triangle are congruent the following triangle is a isosceles triangle


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