📐 Mathematics · Introduction to Three Dimensional Geometry · JEE

The centroid of the triangle with vertices (1, 2, 3), (4, 5, 6) and (7, 8, 9) is:

Answer: (4, 5, 6).

Correct answer: C. (4, 5, 6)

Explanation: Average each coordinate: ((1+4+7)/3, (2+5+8)/3, (3+6+9)/3) = (4, 5, 6).

Concept context

Coordinate axes and planes in space, octants, distance between two points, and the section formula