A flat surface with no thickness.
Plane
True or False: You can name a ray with points A and B, where A is the endpoint, as either Ray AB or Ray BA.
FALSE, the first letter always has to be the starting point.
The intersection two lines
What is a point.
Name the two ways you can name a line with points C and D
line CD or line DC
What does a segment have that a line or a ray do not?
What is two endpoints.
Name 3 Collinear points.
A,B, & C
Points that lie on the same line are called _________?
What is collinear
Line g and line f intersect where?
At point S.
Name 3 noncollinear points.
E, A, & B or
E, B, & C, or
E, B, & D
etc.
The intersection of two lines.
What is a point.
Point E
Name the plane.
Plane P or
Plane ABD or
Plane BEC or
etc.
Three or more points that lie in the same plane.
What is coplanar
Plane GHE intersects Plane FEC where?
Segment FE
Name a pair of opposite rays.
Ray BA and Ray BC