Space - show/hide variables D - toggle demo Info Midsegments - dark blue line Medians - yellow line Centroid - small black circle Incircle - big red circle Details Below Midsegments A midsegment is a segment spanning from one midpoint to another. Three midsegments make another triangle that is rotated 180 degrees and half the size of the original triangle. Medians A median is a segment spanning from one vertice to the midpoint of the opposing side. All three midpoints are of equal length. Centroid The centroid is a point created by the intersections of the medians. This point would be the center of mass on a real triangle. Incircle The encircle is located on the incenter of the triangle, which is found by intersecting the three angle bisectors. The encircle is equidistant(same distance away) from all three sides, creating a circle that touches each side.