Classifying and Identifying Angles 12705

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Classifying and Identifying Angles1-27-05
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What is an angle?

• An angle is formed when two rays connect at a
  vertex.

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Lets make a Tree Diagram
Angles
Example
Acute
Angle lt 90º
The inside of a snowflake!
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Angles
Example
Acute
Obtuse
Angle between 90º and 180 º
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Angles
Acute
Obtuse
Right
Example
Angle 90º
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Angles
Acute
Obtuse
Right
Straight
Example
Angle 180º
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So can you classify these angles?

• 1. 2.
  3.

Name the angle that the arrow points to.