Triangle Geometry and Centroid (Jee Mains) | ExamDuo
Triangle Theorems
Hard
Triangle Geometry and Centroid
The equations of the sides AB,BC and CA of a triangle ABC are: 2x+y=0,x+py=21a,(a≠0) and x−y=3 respectively. Let P(2, a) be the centroid of △ABC. Then (BC)2 is equal to