The reflexive property is about identity, so first trace the boundary that both triangles literally use. A segment that appears in only one triangle cannot supply the shared fact; the same physical segment appearing in both can be written as congruent to itself and used alongside the other givens.
Inside Gozunta
Turn the preview into practice.
More than a preview
Gozunta lets you study this problem—and more than 10,000 others.
Create targeted learning sessions, use hints, check your answer, read the walkthrough, watch the video, print the work, and track your progress.
