What is the first step in constructing an angle? Draw a horizontal ray. Connect the endpoint and the mark at the angle measure Make a mark at the number of degrees you want the angle to be. Place the center of the protractor on the endpoint of the ray, and line up the ray with the zero line of the protractor.​

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The first step in constructing an angle by means of a protractor is; Draw a horizontal ray.

How to Construct an angle

The first step in constructing an angle by means of a protractor involves a sequence of ordered steps as follows;

  • Draw a horizontal ray.
  • Place the center of the protractor on the endpoint of the ray, and line up the ray with the zero line of the protractor.
  • Make a mark at the number of degrees you want the angle to be.
  • Connect the endpoint and the mark at the angle measure

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