Recognize Angles and Understand Angle Measurement: CCSS.Math.Content.4.MD.C.5 - Common Core: 4th Grade Math
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What is an angle that measures less than 
called?
What is an angle that measures less than
By definition, an acute angle is any angle that measures less than 
.
By definition, an acute angle is any angle that measures less than
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Two rays that meet at one point, an endpoint, is called ___________.
Two rays that meet at one point, an endpoint, is called ___________.
By definition, an angle is composed of two rays that meet at a point, called the endpoint.
By definition, an angle is composed of two rays that meet at a point, called the endpoint.
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The image below can be described as a ___________.
The image below can be described as a ___________.
A line segment is a straight line that has a starting point and an ending point.
A line segment is a straight line that has a starting point and an ending point.
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What is an angle that measures more than , but less than 
called?
What is an angle that measures more than
By definition, and obtuse angle is any angle that measure more than 
, but less than 
.
By definition, and obtuse angle is any angle that measure more than
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What is a 
degree angle called?
What is a
By definition, a right angle measures 
.
By definition, a right angle measures
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An angle that measures 
is called ___________.
An angle that measures
By definition, a straight angle measures 
.
By definition, a straight angle measures
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The image below can be described as a ___________.
The image below can be described as a ___________.
By definition, a ray starts at a point and continues in a certain direction, with no endpoint.
By definition, a ray starts at a point and continues in a certain direction, with no endpoint.
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The image below can be described as ___________.
The image below can be described as ___________.
This image is an angle because it shows two rays meeting at an endpoint.
This image is an angle because it shows two rays meeting at an endpoint.
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The image below can be described as ___________.
The image below can be described as ___________.
The image shows an acute angle because it has a measure of 
, which is less than 
.
The image shows an acute angle because it has a measure of
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The image below can be described as ___________.
The image below can be described as ___________.
The image shows an obtuse angle because it has a measure of 
, which is more than 
but less than 
.
The image shows an obtuse angle because it has a measure of
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The image below can be described as ___________.
The image below can be described as ___________.
This image is a straight angle because it measures 
.
This image is a straight angle because it measures
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The image below can be described as ___________.
The image below can be described as ___________.
The image shows a right angle because the angle's measure is 
The image shows a right angle because the angle's measure is
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