#7618

1515

Sept. 26, 2018, 5:39 p.m.

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//Logic, proving the external angle theorem Rose: These angles are "noisy neighbors" because they share some space in their interior. Rose: And these angles are "respectful roommates" because they don't enter each others' interiors. //Later, proving a different theorem Anson: Angles 1 and 2 are all up in each others' interiors.