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Answer :

Mhanifago

Answer:

  • a) No
  • b) SAS

Step-by-step explanation:

B is the midpoint of AC. It means:

  • AB ≅ AC

And we have a common side BD:

  • BD ≅ BD

a) As per above we only have two sides congruent and this information is not sufficient to state the triangles ABD and CBD are congruent.

b) In addition to the two sides we also have:

  • AD ≅ CD

With this additional information we have three sides congruent, so the triangles are congruent by SSS postulate.

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