Eureka Math Grade 4 Module 4 Topic A Flashcard

Front

How many degrees are in a full circle?

Back

360 degrees

Front

What is an acute angle?

Back

An angle that is less than 90 degrees.

Front

What is a line segment?

Back

A part of a line that has two endpoints.

Front

What are perpendicular lines?

Back

Lines that intersect at a right angle (90 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 right angle?

Back

An angle that measures exactly 90 degrees.

Front

What is an obtuse angle?

Back

An angle that is greater than 90 degrees but less than 180 degrees.

Front

What are parallel lines?

Back

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

Front

What is a point in geometry?

Back

A location in space that has no size or dimension.

Front

What is a line in geometry?

Back

A straight path that extends infinitely in both directions.