Number up to 100,000

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By M. Veerasakdi
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Protractor
A device used to measure angles.
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An Acute Angle is less than 90
                  
Acute Angles
An Acute Angle is less than 90
All the angles below are acute angles
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Right Angles
A right angle is an internal angle which is equal
to 90
All the angles below are right angles
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Obtuse Angles
An Obtuse Angle is more than 90 but less than
180
This is an obtuse angle !
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Straight Angle
A straight angle is 180 degrees
This is a straight angle
All the angles below are straight angles
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Reflex Angles
A Reflex Angle is more than 180 but less than
360
This is a reflex angle
All the angles below are reflex angles
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Different Angles have different names
EZSchool.com
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Review
Angle Game
State whether the following are acute, right, or
obtuse.
1.
3.
5.
right
acute
obtuse
straight
2.
4.
acute