*Has no size *tells an exact location *labled as Point x or x
*Staight*has no thickness*infininite in both directions*named by two points on that line
*Part of a line *Has two endpoints labled as segment AB
*Part of a line *has one endpoint and is infinite in the other direction *letter that is the endpoint goes first when naming rays
*flat surface *infinite in all directions *has no thickness*named by three points in the plane
Points that are on the same line
Points that are not on the same line
How many points are needed to determine a line?
Points on the same plane
Points not on the same plane
How many points determine a plane?