for AC equals half AB while these are perpendicular to each other you're only 2 compass strokes away from getting the divine/golden ratio (BE:AE = AB:BE) — Hero of Alexandria, 2k yrs ago nostr:nevent1qvzqqqqqqypzprsm6u84w03aglyrhqda7lws84ck60qncm0wxmkl4h5flmeq59ptqy88wumn8ghj7mn0wvhxcmmv9uq3va...