Trying to find a specific Unit Circle proof my teacher used (Chord Length / Distance Formula)
Hey everyone, I’m trying to understand how my teacher proved the coordinates for W(\pi/6) on the unit circle. I think I made a mistake in my notebook, and whenever I try to find this exact proof online, nothing comes up. Most guides just use special right triangles (30^\circ-60^\circ-90^\circ), but my teacher used the distance formula and chord lengths. Does anyone know what this specific method is called or where I can find a video on it?
Image to my note: https://imgur.com/a/LKmikuk
u/GearPitiful284 — 6 days ago