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Constructing an isosceles triangle



Constructing an isosceles triangle also known as drawing an isosceles triangle using only a straightedge and a compass is what I will show you here

Step #1:

Take your ruler and a pencil and construct a segment of any length on a piece of paper as shown below

segment-image

Then, you will open or close your compass opening to a distance bigger or smaller than segment AB

Take your compass. Make your sure that the pencil is included in it.

You may have to put one hand where the needle is and one hand where the pencil is.

Then open or close the compass making sure that the distance of the opening is bigger or smaller than the length of segment AB

For this situation, we will open the compass to a distance greater than segment AB

Step #2:

Put the needle of your compass at A and draw an arc


constructing-isosceles-triangle-image

Put the needle of your compass at B and draw an arc


constructing-isosceles-triangle-image

The two arcs should meet as shown below:


constructing-isosceles-triangle-image

Step #3:

Draw the segments from the two endpoints to the point where the two arcs intersets


constructing-isosceles-triangle-image



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