Each of the images below is a link to a step-by-step GeoGebra applet through which it is possible to move forwards and backwards in the construction, or watch how the construction is solved in a short animation. The blue “circular” points in some applets are movable.

These applets are gathered in this this GeoGebra book.

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regular triangle, given the edge

regular triangle, given the diameter of the circuncircle

regular triangle, given the direction of an edge

regular triangle, given the apothem

triangle, given the medial triangle

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