
Points • Basic Unit of Geometry • Has no size • Named using capital letters • Points are written as capital letters A, B, C
What Points Look Like A S B M R
If we get a lot of points together and they are straight we make a line! B C S P M L
Lines • Are made of an infinite number of points • Extend in both directions FOREVER • Named by two points on the line • Or with a lowercase cursive letter • The name is written with a symbol AB SV KT
What Lines Look Like d S M G
Vocabulary • Collinear = • points on the same line • Noncollinear = • Not on the same line
Collinear/Noncollinear d S l H M Q G
Rays • Are lines that end on one side • Extend in one direction FOREVER • Named by the endpoint and one other point on the ray • The name is written with a symbol CB KM UV
What do rays look like V K M C U V X
Line Segment • The chunk of line between two points • Could be part of a line or ray or alone • Named by the endpoints • The name is written with a symbol BH DG PV
What do Line segments look like V K M C U V X
Plane • Flat surface • Extends FOREVER • Named by three points in the plane • Or by an uppercase cursive letter • The name is written like this ABC JKM R
More Vocabulary • Coplanar = • points on the same • Noncoplanar = • Not on the same plane plane
What do planes look like R V M K C U