Proof: Congruent Triangles 2     
line AC bisects BAD & BCD
line DC line AD
B = 90
1. 
1. 
D = B
line AC bisects BAD & BCD
DAC BAC
D = 90
B = 90
DAC BAC
line DC line AD
line AC line AC
DCA BCA



ProveIt! by Michael Ferraro <mferraro@balstaff.org>.
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