Question

In ΔABC and ΔADC, AB = AD and BC = CD. Prove that ∆ABC ≌ ΔADC.
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Answer 1

In ΔABC & ΔADC,

AB = AD [given]

BC = CD [given]

AC = AC [common]

So, ∆ABC ≌ ΔADC by SSS criterion.

Answer 2

triangle ABC is congruent to triangle ADC (by sss congruence)

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