Points, Lines, and Planes (pp: 3-10)
Use the diagram at the right: Give another name for plane P. Then name a line in the plane; a line intersecting the plane; and three collinear points. You can find another name for plane P by using any three points in the plane that are not on the same line. So, another name for plane P is plane FAB. A line in the plane is AB, a ray is CB. A line intersecting the plane is CD, and three collinear points are A, C, and B.
Use the diagram: Give another name for plane M. Name a line in the plane. Name a line intersecting the plane. Name two rays. Name a pair of opposite rays. Name a point not in plane M.