THE SEGMENT THAT JOINS THE 2 MIDPOINTS

WHEN 3 OR MORE LINES THAT MEET IN ONE POINT

The point where the three perpendicular points meet

SEGMENT W/ ENDPOINTS A VERTEX OF THE TRI&MIDPOINT OF THE OPP SIDE

THE POINT OF INTERSECTION OF THE MEDIANS OF THAT TRIANGLE

PERPENDICULAR SEGMENT FROM A VERTEX 2 THE LINE OPP THT VERTEX

POINT OF INTERSECT. OF THE LINES CONTAINING ALTITUDES OF TRIANGLES

CIRCUMCENTER OF A TRIANGLE

MEDIAN OF A TRIANGLE

MID-SEGMENT OF TRIANGLE

CENTROID

ORTHOCENTER OF TRIANGLE