kangaroo — 10/4/2025, 1:38:16 AM

how do we know parallel lines are actually parallel?

♥ 1 ↩ 0 💬 2 comments

comments

cheesewhisk3rs:

They have the same gradient

10/4/2025, 8:43:57 AM
juniperrr:

me, a physicist, living in a non-Euclidean geometry universe:

10/4/2025, 1:58:06 AM