Geometry Basics

Front

What is a location in space that is represented by a dot and has no dimensions?

Back

Point

Front

How many degrees are in a straight angle?

Back

180 degrees

Front

What is the term for a straight path that extends infinitely in both directions?

Back

Line

Front

What does segment AB mean?

Back

It refers to the length of the line between points A and B.

Front

How is a line named?

Back

By any 2 points on the line, or a lowercase script letter.

Front

What is a ray?

Back

A part of a line that starts at a point and extends infinitely in one direction.

Front

What is a line segment?

Back

A part of a line that has two endpoints.

Front

What is the definition of an angle?

Back

An angle is formed by two rays that share a common endpoint.

Front

What is the sum of the angles in a triangle?

Back

180 degrees.

Front

What is a right angle?

Back

An angle that measures exactly 90 degrees.