Can u explain the example 3 second part ans am not able to understand

Dear Student,

Please find below the solution to the asked query:

To show congruency in any two triangles we name our triangles as both shows relationship between corresponding sides .

As here :

$\angle$ ABC  = $\angle$ BAD   (  From diagram )

But

$\angle$ ABC  $\ne$ $\angle$ ABD    (  Both are different angles clearly from the diagram )

So,

Statement two is not meaningful in the sense that corresponding among the vertices is not satisfied , Although triangle BAD and triangle ABD is same .

Hope this information will clear your doubts about topic.

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