Finding the equation of a curve formed by lines (~ 6 min)
My sister had to do some artwork for school, and she decided to make some curved shapes out of lines. It looks pretty cool (although it would have been even better with pencil I think, but she wouldn’t listen, and I’m too lazy to do it myself right now), and making curves out of just lines, well, I find that pretty fancy. But I wondered what the curves actually were… Circles? Parabolas? Ellipses? Something different?