of an isosceles triangle ABC is acute in which  AB = AC and BDAC . Prove that

The correct answer is: Hence proved

Solution :-
Aim  :- prove 
Hint :- Using pythagoras theorem, find the length of  side AB and BC .
Substitute the RHS of   in terms of AC and CD Explanation(proof 

 Using pythagoras theorem,in triangle BDC

Using pythagoras theorem,in triangle BDA

Substitute Eq2 in Eq1

Substitute AD = AC - CD (from diagram)





Hence proved

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