Practice problem
We have △ABC\triangle ABC△ABC, △DEF\triangle DEF△DEF, and △GHI\triangle GHI△GHI. we know △ABC≅△DEF\triangle ABC \cong \triangle DEF△ABC≅△DEF; △DEF≅△GHI\triangle DEF \cong \triangle GHI△DEF≅△GHI.
Can we conclude that △ABC\triangle ABC△ABC is congruent to △GHI\triangle GHI△GHI?
Yes
No
There is not enough information to tell
Type a concept, like “slope” or “photosynthesis”.