plane
A flat surface that goes on forever in all directions. It has no edges.
point
a location in space that has no size or shape but is often represented using a dot
line
A straight path with no endpoints.
It goes on forever in two opposite directions.
line segment
A part of a line between two endpoints.
ray
Part of a line that has one endpoint and goes on forever in one direction.
collinear points
points that are located on the same line
compass
a tool used to create arcs and circles
straightedge
a ruler with no numbers
sketch
to create a geometric figure without the use of tools
draw
to create a geometric figure with the use of tools such as a ruler, straightedge, compass, or protractor
construct
to create a geometric figure using only a compass and a straightedge
coplanar lines
two or more lines that are located in the same place
skew lines
two or more lines that are not in the same plane
endpoint of a ray
the single point where the ray begins
endpoints of a line segment
the points where the line segment begins and ends
congruent line segments
two or more line segments of equal measure
duplicate a line segment
to construct an exact copy of the original
