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9.2 Angles
9.2 Angles
9.2 Angles
9.2 Angles
9.2 Angles
9.2 Angles
9.2 Angles
9.2 Angles
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9.2 Angles

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  • 1. 9.2 ­ Angles Objective: Name, measure, and  draw angles. Mr. Williams GESD jwilliams@gesd40.org 1
  • 2. Angle Formed by two  rays with the  same endpoint. Image: 'green lines' www.flickr.com/photos/69005233@N00/38027252 2
  • 3. Vertex The endpoint of  the rays that form  the angle. Image: 'green lines' www.flickr.com/photos/69005233@N00/38027252 3
  • 4. A B Naming Angles You can name an angle by its  vertex.    B C Image: 'obrint pas:on vas' www.flickr.com/photos/41754875@N00/1068925369 4
  • 5. A B Naming Angles You can name an angle by its  vertex and two points.    ABC              CBA C The vertex is always in the  middle. Image: 'obrint pas:on vas' www.flickr.com/photos/41754875@N00/1068925369 5
  • 6. Your Turn: With your group work on pg. 425 problems 1 ­ 3 Image: 'Desks' www.flickr.com/photos/31136139@N00/1663782172 6
  • 7. Using a Protractor Image: 'hard math' www.flickr.com/photos/41894176272@N01/201844037 7
  • 8. Your Turn: With your group draw angles with the following degrees: o o o o o o 60 , 75 , 35 , 90 , 115 , 170 Image: 'Desks' www.flickr.com/photos/31136139@N00/1663782172 8

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