Proof: Congruent Triangles 4     
ray TV bisects UTW
ray TV is an altitude in TUW
TUW is isosceles
1. 
1. 
segment TW segment TU
TUV TWV
ray TV segment UW
ray TV is an altitude in TUW
TUW is isosceles
ray TV bisects UTW
TVU = 90; TVW = 90
TVU = TVW (or TVU TVW)
TV = TV
UTV WTV



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