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Protractor powerpoint

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Protractor usage

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Measuring, calculating and drawing angles... ,[object Object],[object Object],[object Object],[object Object],[object Object]
What do we use to help us? ,[object Object],Here is a standard protractor like you use in the classroom.
When we use a protractor, we need to line it up correctly. ,[object Object],[object Object]
Were you right......................it wasn’t ,[object Object],[object Object]
We need to remember..... It doesn’t matter which way round the angle is, you ALWAYS need to line the upside down ‘T’ to the vertex of the angle.
Now you are ready. ,[object Object]
Once you reach 30 ° you need to be careful!!! ,[object Object]
What does it measure? ,[object Object]
Measuring, calculating and drawing angles... ,[object Object],[object Object],[object Object],[object Object],[object Object]

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Protractor powerpoint

  • 1.
  • 2.
  • 3.
  • 4.
  • 5. We need to remember..... It doesn’t matter which way round the angle is, you ALWAYS need to line the upside down ‘T’ to the vertex of the angle.
  • 6.
  • 7.
  • 8.
  • 9.