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(Congruence vs Isometry). We discussed two notions of “sameness†for surfaces: congruence and isometry. What are these?…

(Congruence vs Isometry). We discussed two notions of “sameness†for surfaces: congruence and isometry. What are these?…

(Congruence vs Isometry). We discussed two notions of “sameness” for surfaces: congruence and isometry. What are these? How are they different? Compare and contrast their properties.