Common Core: 4th Grade Math : Geometric measurement: understand concepts of angle and measure angles

Study concepts, example questions & explanations for Common Core: 4th Grade Math

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Example Questions

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

What is an angle that measures less than  called? 

Possible Answers:

An obtuse angle

An acute angle

A right angle

Correct answer:

An acute angle

Explanation:

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

Example Question #2 : Geometric Measurement: Understand Concepts Of Angle And Measure Angles

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

Possible Answers:

a line

an angle

a ray

Correct answer:

an angle

Explanation:

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

Example Question #3 : Geometric Measurement: Understand Concepts Of Angle And Measure Angles

The image below can be described as a ___________.

Line segament

 

Possible Answers:

line segment

angle 

ray

Correct answer:

line segment

Explanation:

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

Example Question #4 : Geometric Measurement: Understand Concepts Of Angle And Measure Angles

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

Possible Answers:

An obtuse angle

An acute angle

A ray

Correct answer:

An obtuse angle

Explanation:

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

Example Question #5 : Geometric Measurement: Understand Concepts Of Angle And Measure Angles

What is a  degree angle called? 

Possible Answers:

A ray

A line segment

A right angle

Correct answer:

A right angle

Explanation:

By definition, a right angle measures 

Example Question #3 : Geometric Measurement: Understand Concepts Of Angle And Measure Angles

An angle that measures  is called ___________. 

Possible Answers:

a ray

an obtuse angle

a straight angle

Correct answer:

a straight angle

Explanation:

By definition, a straight angle measures 

Example Question #7 : Geometric Measurement: Understand Concepts Of Angle And Measure Angles

The image below can be described as a ___________.

Ray

Possible Answers:

ray

angle

line segment

Correct answer:

ray

Explanation:

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

Example Question #8 : Geometric Measurement: Understand Concepts Of Angle And Measure Angles

The image below can be described as  ___________.

Angle

Possible Answers:

a ray

an angle

a line

Correct answer:

an angle

Explanation:

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

Example Question #9 : Geometric Measurement: Understand Concepts Of Angle And Measure Angles

The image below can be described as ___________.

Acute angle

Possible Answers:

a straight angle

an obtuse angle

an acute angle

Correct answer:

an acute angle

Explanation:

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

Example Question #10 : Geometric Measurement: Understand Concepts Of Angle And Measure Angles

The image below can be described as ___________.

Obtuse angle

Possible Answers:

an obtuse angle

a straight angle

an acute angle 

Correct answer:

an obtuse angle

Explanation:

The image shows an obtuse angle because it has a measure of , which is more than  but less than .

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