ProveIt! Two-Column Proofs Practice Tool

Proof: Congruent Triangles 4

ray TV bisects angle

angle

UTW

ray TV is an altitude in 3gon

3gon

TUW

3gon

TUW is isosceles

1.

1.

ray TV bisects angle

angle

UTW

TVU =

TVW (or

angle

TVU

congruent

angle

TVW)

3gon

TUV

congruent

3gon

TWV

TV = TV

TVU = 90 $\^o$ ;

TVW = 90 $\^o$

segment TW congruent

congruent

segment TU

ray TV

perpendicular

segment UW

ray TV is an altitude in 3gon

3gon

TUW

angle

UTV

congruent

angle

WTV

3gon

TUW is isosceles

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