Pre-Algebra Chapter 9 Spatial Thinking Vocabulary Flashcard

Front

A ___________________ is a location in space. It has no size.

Back

point

Front

A series of points that extends in two-directions without end is a ________________________.

Back

line

Front

A plane is a _________________________________

Back

A flat surface that extends outward in all directions with no thickness.

Front

A part of a line that has two endpoints is a ______________________.

Back

segment

Front

What is a ray?

Back

a part of a line with one endpoint that extends in the other direction indefinitely

Front

Two lines that do not intersect, but lie in the same plane are

Back

parallel

Front

Two lines that do not intersect and do not lie in the same plane are _________________________

Back

skew

Front

_________________________ share a vertex and a side but no points in their interiors.

Back

adjacent angles

Front

What are formed by two intersecting lines and are opposite each other with the same measure?

Back

vertical angles

Front

What are angles that have the same measure called?

Back

congruent