Angles

tcollins

Using a protractor


  • 1. Measuring Angles Using Protractor
  • 2. Parallel Lines
  • 3. Alternate Angles
  • 4. Corresponding Angles
  • 5. Triangle Angle-Sum Theorem

1.

Measuring Angles Using Protractor

[b](Updated: 8 Sept 2016)[/b][br]Measure the angle using the protractor.[br]Drag the protractor to appropriate position. Drag the red point to rotate it.[br]Drag the green points or press the "Random" button to adjust the angle.
Anthony Or. GeoGebra Institute of Hong Kong.
– Anthony OR 柯志明

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