what is a Incenter of a triangle??
The point where the three angle bisectors of a triangle meet. One of a triangle's points of concurrency. |dw:1338043495412:dw|
The three altitudes of a triangle meet in a common point called the orthocenter, O in Fig. 8a and 8b. The three medians meet in a point called the centroid, M in Fig. 9. The centroid divides a median through it into two segments, and the segment having a vertex as endpoint is always twice as long as the other segment. The three angle bisectors meet in a point called the incenter (I in Fig. 10)