4th Grade Angles

Front

What is an angle?

Back

An angle is formed by two rays (sides) that share a common endpoint (vertex).

Front

What are the three main types of angles?

Back

The three main types of angles are acute (less than 90 degrees), right (exactly 90 degrees), and obtuse (greater than 90 degrees but less than 180 degrees).

Tags

CCSS.4.G.A.1

Front

What is a right angle?

Back

A right angle is an angle that measures exactly 90 degrees.

Tags

CCSS.4.G.A.1

Front

What is an acute angle?

Back

An acute angle is an angle that measures less than 90 degrees.

Tags

CCSS.4.G.A.1

Front

What is an obtuse angle?

Back

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

Tags

CCSS.4.G.A.1

Front

What is a straight angle?

Back

A straight angle is an angle that measures exactly 180 degrees.

Tags

CCSS.4.G.A.1

Front

How do you measure an angle?

Back

You measure an angle using a protractor, which shows the degree measurement of the angle.

Tags

CCSS.4.MD.C.6

Front

What is the measure of a right angle?

Back

The measure of a right angle is 90 degrees.

Tags

CCSS.4.G.A.1

Front

If an angle measures 56 degrees, what type of angle is it?

Back

It is an acute angle.

Tags

CCSS.4.G.A.1

Front

If an angle measures 125 degrees, what type of angle is it?

Back

It is an obtuse angle.

Tags

CCSS.4.G.A.1