Proof: Congruent Triangles 3     
WXYZ
XY = 10
ZW = 10
1. 
1. 
XY = 10
YZ XW
YX ZW
YZW WXY
ZW = 10
ZYW XWY
XYW ZWY
line WY line WY
XY = ZW
WXYZ



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