2. MeasuringAngles Press Ctrl-A ©2009 G Dear – Not to be sold/Free to use Stage 4 Years 7 & 8 Web

3. Measuring Angles Base Line Central Point The Basics End of Slide

4. Measuring Angles 1. Draw an angle

5. Measuring Angles 2. Put the central point of the protractor on the vertex. Vertex

6. Measuring Angles 3. Rotate protractor so the base line lines up with a ray.

7. Measuring Angles 4. Read the angle off the protractor reading from 0 o. 52 o End of Slide

8. Measuring Angles 1. Draw an angle

9. Measuring Angles Vertex 2. Put the central point of the protractor on the vertex.

10. Measuring Angles 3. Rotate protractor so the base line lines up with a ray.

11. 120 o Measuring Angles 120 o 4. Read the angle off the protractor reading from 0 o. End of Show Web