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jackiezhang2007

AB=CB    Def of isosceles triangle

AD=CD    Def of median

BD=BD    Reflexive property

ADBcongCDB  SSS congruency

Step-by-step 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