Eureka Math Grade 4 Module 4 Topic A Flashcard

Front

What are intersecting lines?

Back

Lines that cross each other at one point.

Front

What is a line?

Back

A straight path that extends infinitely in both directions.

Front

What is a line segment?

Back

A part of a line that has two endpoints.

Front

What is a ray?

Back

A part of a line that has one endpoint and extends infinitely in one direction.

Front

What is a point in geometry?

Back

A specific location in space that has no size or dimension.

Front

What is a right angle?

Back

An angle that measures exactly 90 degrees.

Front

What is an acute angle?

Back

An angle that measures less than 90 degrees.

Front

What is an obtuse angle?

Back

An angle that measures more than 90 degrees but less than 180 degrees.

Front

How is a line different from a line segment?

Back

A line goes forever in both directions, while a line segment has two endpoints.

Front

What are parallel lines?

Back

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