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OpenStudy (anonymous):
In ΔRST shown below, segment SU is an altitude: Triangle RST with segment SU drawn from vertex S and intersecting side RT. Which of the following is a justification used while proving the similarity of triangles ΔRUS and ΔSUT? -Transitive Property of Equality -Addition Property of Equality -Definition of Supplementary Angles -Definition of Congruence
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OpenStudy (anonymous):
OpenStudy (anonymous):
I think it would be the definition of supplementary angles, because if added together it would come out as 180 degrees, if I'm right.
OpenStudy (anonymous):
it was wrong
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