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



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