# Common Core: 4th Grade Math : Recognize Angles and Understand Angle Measurement: CCSS.Math.Content.4.MD.C.5

## Example Questions

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### Example Question #1 : Recognize Angles And Understand Angle Measurement: Ccss.Math.Content.4.Md.C.5

What is an angle that measures less than  called?

An acute angle

A right angle

An obtuse angle

An acute angle

Explanation:

By definition, an acute angle is any angle that measures less than .

### Example Question #1 : Recognize Angles And Understand Angle Measurement: Ccss.Math.Content.4.Md.C.5

Two rays that meet at one point, an endpoint, is called ___________.

a line

an angle

a ray

an angle

Explanation:

By definition, an angle is composed of two rays that meet at a point, called the endpoint.

### Example Question #1 : Recognize Angles And Understand Angle Measurement: Ccss.Math.Content.4.Md.C.5

The image below can be described as a ___________.

ray

angle

line segment

line segment

Explanation:

A line segment is a straight line that has a starting point and an ending point.

### Example Question #1 : Recognize Angles And Understand Angle Measurement: Ccss.Math.Content.4.Md.C.5

What is an angle that measures more than , but less than  called?

A ray

An obtuse angle

An acute angle

An obtuse angle

Explanation:

By definition, and obtuse angle is any angle that measure more than , but less than

### Example Question #2 : Recognize Angles And Understand Angle Measurement: Ccss.Math.Content.4.Md.C.5

What is a  degree angle called?

A right angle

A ray

A line segment

A right angle

Explanation:

By definition, a right angle measures

### Example Question #1 : Geometric Measurement: Understand Concepts Of Angle And Measure Angles

An angle that measures  is called ___________.

a straight angle

a ray

an obtuse angle

a straight angle

Explanation:

By definition, a straight angle measures

### Example Question #1 : Recognize Angles And Understand Angle Measurement: Ccss.Math.Content.4.Md.C.5

The image below can be described as a ___________.

angle

line segment

ray

ray

Explanation:

By definition, a ray starts at a point and continues in a certain direction, with no endpoint.

### Example Question #1 : Recognize Angles And Understand Angle Measurement: Ccss.Math.Content.4.Md.C.5

The image below can be described as  ___________.

an angle

a ray

a line

an angle

Explanation:

This image is an angle because it shows two rays meeting at an endpoint.

### Example Question #102 : Measurement & Data

The image below can be described as ___________.

an obtuse angle

a straight angle

an acute angle

an acute angle

Explanation:

The image shows an acute angle because it has a measure of , which is less than

### Example Question #2 : Recognize Angles And Understand Angle Measurement: Ccss.Math.Content.4.Md.C.5

The image below can be described as ___________.

an acute angle

an obtuse angle

a straight angle