Plane Geometry: Finding the missing angles

Plane geometry is the study of figures on a two-dimensional surface — that is, on a plane. You can think of the plane as a piece of paper with no thickness at all. Technically, a plane doesn't end at the edge of the paper — it continues forever. Join this channel to get access to perks: https://www.youtube.com/channel/UCYxAOG6Kz3t_haF45jYPFPQ/join