front 1 Incenter | back 1 angular bisectors |
front 2 angular bisector | back 2 a line that bisects an angle |
front 3 orthocenter | back 3 altitudes |
front 4 altitudes | back 4 vertex to opposite side (perpendicular) |
front 5 circumcenter | back 5 perpendicular bisector |
front 6 centroid | back 6 medians |
front 7 medians | back 7 vertex to midpt of opp side |
front 8 Circumcerter of a right triangle | back 8 Midpoint of hypotenuse |
front 9 Orthocenter of right triangle | back 9 Right angle point |