Measuring Angles

Today we went on this website: https://www.khanacademy.org/math/geometry-home/geometry-angles#geometry-measure-angle, and learned how to measure angles with a protractor.  In the video, it says that you need to line up the zero point of the protractor with the corner of the angle. Once you do this, you need to line up one of the rays directly along the horizontal line at the base of the protractor. You can then read the measurement of the angle by looking at where the other ray is pointing on the protractor. Remember, a ray is just one of the lines that make up the angle.

Please use the above link to practice at home!

Mrs. dO and Grade4/5

 

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