1.

6x^2-5x-21In figer ABCD is a quadrilater in which AB=BC and LDAB =LCBA prove that (i) tringal ABD congruence teingalBAC(ii) BD=AC​

Answer»

Answer:

Step-by-step EXPLANATION:

Given:

AD=BC                   (i)

∠DAB=∠CBA           (II)

To Prove:

(i) ΔABD≅ΔBAC

(ii) BD=AC

Proof:

In ΔABD and ΔBAC

(i)AD=BC   (Given)

(ii)∠DAB=∠CBA   (Given)

(iii)AB=AB   (COMMON Side)

∴ΔABD≅ΔBAC bt SAS congruence rule

(ii) BD=AC    (By C.P.C.T)


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