Eureka Math Grade 4 Module 4 Topic A Flashcard

Front

What are intersecting lines?

Back

Lines that cross each other at one point.

Tags

CCSS.HSG.CO.A.1

Front

What is an obtuse angle?

Back

An angle that is larger than 90 degrees.

Tags

CCSS.4.G.A.1

Front

What tool do we use to measure angles?

Back

A protractor.

Tags

CCSS.4.MD.C.6

Front

What is an acute angle?

Back

An angle that is smaller than 90 degrees.

Tags

CCSS.4.G.A.1

Front

What is a right angle?

Back

An angle that is exactly 90 degrees.

Tags

CCSS.4.G.A.1

Front

What are parallel lines?

Back

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

Tags

CCSS.HSG.CO.A.1

Front

What is the sum of angles in a triangle?

Back

180 degrees.

Tags

CCSS.8.G.A.5

Front

What is a straight angle?

Back

An angle that is exactly 180 degrees.

Tags

CCSS.4.G.A.1

Front

What is a reflex angle?

Back

An angle that is larger than 180 degrees but smaller than 360 degrees.

Tags

CCSS.4.G.A.1

Front

What is the difference between acute and obtuse angles?

Back

Acute angles are less than 90 degrees, while obtuse angles are greater than 90 degrees.

Tags

CCSS.4.G.A.1