Foundations of Geometry Vocabulary

Front

Objects that are on the same plane are ________.

Back

coplanar

Front

Two distinct lines intersect at ___________.

Back

a point

Front

What is the difference between a LINE SEGMENT and a LINE?

Back

Line Segments have finite lengths; Lines go on forever.

Front

Correctly name the figure: Segment CD, Segment DC, Ray DC, Line CD.

Back

Line CD

Front

Points that lie on the same line are _________.

Back

collinear

Front

A straight path that extends infinitely in both directions is called a ________.

Back

line

Front

A part of a line that has two endpoints is called a ________.

Back

line segment

Front

A line that intersects another line at a right angle is called ________.

Back

perpendicular

Front

Lines that never intersect and are always the same distance apart are called ________.

Back

parallel

Front

The point where two lines meet is called ________.

Back

intersection