Construction


 

Construct any triangle.

 

Next construct the midpoints of Segment AB and BC and draw perpendicular lines to Segment AC.

 

 

 

Next construct a perpendicular line at point B to the previous perpendicular lines.

 

 

 

 

After constructing the intersection points you can see your quadrilateral. (Hide the dashed lines)

 

 

Click here for the GSP File


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