Practice problem
Meaning of Congruence in Geometry

Image by Rupert Kittinger-Sereinig via Pixabay (Creative Commons CC0 for Commercial Reuse)
Considering the piano keys above, which groups are congruent? Check all that apply.
Practice problem

Image by Rupert Kittinger-Sereinig via Pixabay (Creative Commons CC0 for Commercial Reuse)
Considering the piano keys above, which groups are congruent? Check all that apply.