Explanation:
Statemet 1 AB=CB
Statement 2 AD=DC.
Statement 3 BD=BD.
Statement 4 Triangle ABD is congruent to triangle
CBD.
Reasons
Reason 2 Definition of Median
Reason 4 SSS
AB=CB Def of isosceles triangle
AD=CD Def of median
BD=BD Reflexive property
ADBcongCDB SSS congruency
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