9.2 angles
TRANSCRIPT
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Angle
Formed by two rays with the same endpoint.
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Vertex
The endpoint of the rays that form the angle.
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Naming Angles
You can name an angle by its vertex.
B
A B
C
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Naming Angles
You can name an angle by its vertex and two points.
ABC CBA
The vertex is always in the middle.
A B
C
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Your Turn:
With your group work on
pg. 425 problems 1 3
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Using a Protractor
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Your Turn:
With your group draw angleswith the following degrees:
60o, 75o, 35o, 90o, 115o, 170o