Kinds of Angles
![Picture](/uploads/3/1/3/2/31322077/9445592.gif?208)
What's an angle?
The word comes from the Latin word angulus, which means " a little bending"
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In mathematics an angle measures how much "bending" or turning one line (= one side of the angle) does to get into the position of another line (= the other side of the angle.)
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The word comes from the Latin word angulus, which means " a little bending"
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In mathematics an angle measures how much "bending" or turning one line (= one side of the angle) does to get into the position of another line (= the other side of the angle.)
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Names of Angles:
Acute angle < 90 degrees
Right Angle = 90 degrees
Obtuse angle > 90 degrees
Straight angle = 180 degrees
Reflex angle > 180 degrees
Acute angle < 90 degrees
Right Angle = 90 degrees
Obtuse angle > 90 degrees
Straight angle = 180 degrees
Reflex angle > 180 degrees
![Picture](/uploads/3/1/3/2/31322077/5456531.png?1403825995)
As the Angle Increases,
the Name Changes
click the picture for quick review
the Name Changes
click the picture for quick review