Math, asked by bansalchirag9923, 9 months ago

ABC is a right angle triangle such that AB=AC and bisector of angleC intersects the side AB at D. Prove that AC+AD=BC

Answers

Answered by likhitadasari
4

Answer:

Step-by-step explanation:

It seems  AC + AD = √2 AC  = BC.  

Perhaps there is a mistake in the given problem..

See the Diagram.

Draw a perpendicular from D onto BC to meet it at E.

∠EDC = ∠ADC   as  ∠E = 90° = ∠A  and   ∠ACD = ∠ECD as CD is a bisector of ∠C.

ΔADC and ΔEDC are congruent, as CD is a common side.

      =>  AC = CE         and      AD = DE

In ΔBDE, ∠BDE = ∠DBE 

So BE = DE          =>  BE = AD

AC + AD = CE + EB

               = BC

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