Geometric Figures, Types of Lines, and Angles

Front

An angle is less than 90 degrees is...

Back

an acute angle

Front

An angle whose measure is exactly 90 degrees.

Back

right

Front

This image is an example of ______________.

Back

a line

Front

Name the figure above.

Back

Line Segment

Front

An angle greater than 90 degrees is called...

Back

an obtuse angle

Front

What do you call a straight angle?

Back

An angle that measures exactly 180 degrees.

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 difference between a line and a line segment?

Back

A line extends infinitely in both directions, while a line segment has two endpoints.

Front

What is a vertical angle?

Back

Angles that are opposite each other when two lines intersect.