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Example 12

Example 12. In th e given fig ABC and PQR are 
isosceles triangles in which .

 

Solution:-

Given:- In  and PQR,  and PQ = PR

To find: 

Proof:-  is isosceles with AB = AC

 is isosceles with PQ = PR

From (1) and (2) we get

Or, 

 

from (3) and (4)

We know 

 

 


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