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



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