ABCD is a quadrilateral in which AD = BC and ?DAB = ?CBA. Prove that ?ABD ? ?BAC.

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Balaji Puppala

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Area=16×8=128sq.cm
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Consider ?ABD,?BAC AB=AB(common side) AD=BC(given) angleDAB=angleBAC By SAS axiom ?ABD congruent to ?BAC By congruency corresponding angles are equal angleABD=angleBAC
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