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# 10.1 And 10.3

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### 10.1 And 10.3

1. 1. 10.1 Angles 10.3 Angle Relationships 1—Measure angles 2—Identify and apply angle relationships
2. 2. Sort <ul><li>Sort the pictures into 4 categories and name each type of angle. </li></ul>
3. 3. Angles
4. 4. Concept Map <ul><li>Pick one type of angle and complete a concept map for it. </li></ul><ul><li>Give the definition, draw a picture, and tell where you would find it in the real world. </li></ul>
5. 5. Measuring and constructing angles <ul><li>What do you use to measure a line? </li></ul><ul><li>What do you use to measure an angle? </li></ul>
6. 6. Video <ul><li>Measuring acute angles video (time 1:10) </li></ul><ul><li>Measure the 4 angles on your paper. </li></ul>
7. 7. Drawing angles---Draw . <ul><li>Draw a ray with a measure of 75 °. </li></ul><ul><li>Place the center point of a protractor on A. Align the ray with 0°. </li></ul><ul><li>Use the scale that begins with 0°. Locate the mark labeled 75. Then draw the other side of the angle. </li></ul>
8. 8. 10-3 Angle Relationships <ul><li>Video </li></ul><ul><li>Handout page 8 </li></ul><ul><li>Write a definition for adjacent and vertical angles. Then draw a picture of both. </li></ul>
9. 9. Complementary Angles
10. 10. Supplementary Angles
11. 11. Classify as complementary or supplementary <ul><li>http://www.321know.com/geo-comp-or-sup.htm </li></ul>
12. 12. Page 423 <ul><li>Example 3 </li></ul><ul><li>Your turn a, b </li></ul><ul><li>Example 4 </li></ul><ul><li>Handout page 10 </li></ul>
13. 13. Quadrant Card List 4 types of angles with picture (from beginning of lesson) Definition and picture of Vertical angles Definition and picture of Supplementary angles Definition and picture of Complementary angles
14. 14. Homework <ul><li>page 414: 8-17 (don’t draw, just classify) </li></ul><ul><li>and page 424: 1-22 </li></ul>