Copying an angle or constructing an angle congruent to a given angle using only a straightedge and a compass is what I will show you here. I will show you the steps to copy an acute angle. The steps are still the same when the angle is right or obtuse.
Therefore, study the steps outlined here carefully and you will be able to copy any angle.
Copy Angle A shown below:
Step 1:Notice that you can open the compass to any distance that you like. Just make sure that the distance you open the compass is not so big that when you draw the arc, it will not intersect the rays.
While doing step 2, you got to make sure the opening of the compass does not become smaller or bigger while drawing the arc. If you do not do this, you will end up copying the angle incorrectly.
Activity
1. Get a piece of paper, a ruler, and a compass.
2. Draw an obtuse angle or an angle that is bigger than 90 degrees. Do you not remember what an obtuse angle look like? Check the lesson about types of angles.
3. Using the steps outlined above, copy the obtuse angle you drew in step 2.
May 05, 21 01:08 PM
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