Name the postulate or theorem you can use to prove ∆ABD ≅ ∆CBD.A. SAS Postulate B. ASA Postulate C. SSS Postulate D. AAS Theorem

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Triangle CBD is congruent to triangle ABD. This means that BD is congruent to BD by reflexive property. You have two congruent angles, and one congruent side. This would be AAS theorem. The answer is D.

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