10-2 Measuring/Classifying Angles
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The document discusses angles and how to measure them. An angle is formed when two rays share an endpoint called the vertex. A protractor is used to measure angles by lining up the vertex with the 0 mark and reading the degree measure. There are three kinds of angles: acute angles measure less than 90 degrees, right angles measure exactly 90 degrees, and obtuse angles measure more than 90 degrees.
10-2 Measuring/Classifying Angles
- 1. 8-2 Measuring and Classifying Angles Math Notes Measurement and Geometry 2.1
- 2. Angle An ANGLE is formed when two rays have the SAME ENDPOINT, called the VERTEX. BMN
- 3. Angle An ANGLE is formed when two rays have the SAME ENDPOINT, called the VERTEX. BMN . . M first N ray
- 4. Angle An ANGLE is formed when two rays have the SAME ENDPOINT, called the VERTEX. second B. BMN ray . . M first N ray
- 5. Angle An ANGLE is formed when two rays have the SAME ENDPOINT, called the VERTEX. second B. BMN ray . . VERTEX M first N ray
- 6. Angle An ANGLE is formed when two rays have the SAME ENDPOINT, called the VERTEX. second B. BMN ray . ANGLE . VERTEX M first N ray
- 7. Review
- 8. Review . . S first ray T
- 9. Review R . second ray . . S first ray T
- 10. Review R . second ray . . VERTEX S first ray T
- 11. Review R . second ray ANGLE . . VERTEX S first ray T
- 12. Review R . RST second ray ANGLE . . VERTEX S first ray T
- 13. Protractor Used to measure angles.
- 14. Protractor Used to measure angles.
- 15. How to use a Protractor
- 16. How to use a Protractor . R . . S T
- 17. How to use a Protractor . R . . S T
- 18. How to use a Protractor . R . . S T Line up the vertex with this mark.
- 19. How to use a Protractor . R . . S T Line up the vertex with this mark.
- 20. How to use a Protractor . R . . S T Line up the vertex with this mark.
- 21. How to use a Protractor Start with 0 degrees and measure . R . . S T Line up the vertex with this mark.
- 22. How to use a Protractor Start with 0 degrees and measure . R . . S T Line up the vertex with this mark.
- 23. How to use a Protractor Start with 0 degrees and measure . R . . S T Line up the vertex with this mark.
- 24. How to use a Protractor Start with 0 degrees and measure . R 120˚ . . S T Line up the vertex with this mark.
- 25. 3 Kinds of Angles
- 26. 3 Kinds of Angles ACUTE angles measure LESS than 90˚
- 27. 3 Kinds of Angles ACUTE angles measure LESS than 90˚ RIGHT angles measure exactly 90˚
- 28. 3 Kinds of Angles ACUTE angles measure LESS than 90˚ RIGHT angles measure exactly 90˚ OBTUSE angles measure MORE than 90˚
- 29. 3 Kinds of Angles ACUTE angles measure LESS than 90˚ RIGHT angles measure exactly 90˚ OBTUSE angles measure MORE than 90˚
- 30. 3 Kinds of Angles ACUTE angles measure LESS than 90˚ RIGHT angles measure exactly 90˚ OBTUSE angles measure MORE than 90˚ 90˚
- 31. 3 Kinds of Angles ACUTE angles measure LESS than 90˚ RIGHT angles measure exactly 90˚ OBTUSE angles measure MORE than 90˚ 90˚ Right Angle
- 32. 3 Kinds of Angles ACUTE angles measure LESS than 90˚ RIGHT angles measure exactly 90˚ OBTUSE angles measure MORE than 90˚ 90˚ Right Angle
- 33. 3 Kinds of Angles ACUTE angles measure LESS than 90˚ RIGHT angles measure exactly 90˚ OBTUSE angles measure MORE than 90˚ LESS than 90˚ 90˚ Right Angle
- 34. 3 Kinds of Angles ACUTE angles measure LESS than 90˚ RIGHT angles measure exactly 90˚ OBTUSE angles measure MORE than 90˚ LESS than 90˚ 90˚ Acute Angle Right Angle
- 35. 3 Kinds of Angles ACUTE angles measure LESS than 90˚ RIGHT angles measure exactly 90˚ OBTUSE angles measure MORE than 90˚ LESS than 90˚ 90˚ Acute Angle Right Angle
- 36. 3 Kinds of Angles ACUTE angles measure LESS than 90˚ RIGHT angles measure exactly 90˚ OBTUSE angles measure MORE than 90˚ LESS MORE than than 90˚ 90˚ 90˚ Acute Angle Right Angle
- 37. 3 Kinds of Angles ACUTE angles measure LESS than 90˚ RIGHT angles measure exactly 90˚ OBTUSE angles measure MORE than 90˚ LESS MORE than than 90˚ 90˚ 90˚ Acute Angle Right Angle Obtuse Angle