Proof: Congruent Triangles 5     

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D is midpoint of segment TN D is midpoint of segment SA segment ST segment NA
1.	1.
D is midpoint of segment TN
D is midpoint of segment SA
SDT ADN
DTS DNA
S A
SD = AD
TD = ND
segment ST segment NA

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