Question

Which is the centroid of triangle KLM?

Point A, because it is the point of intersection of the medians of the triangle.

Point A, because it is the point of intersection of segments from the vertices that are of the same length.

Point B, because it is the point of intersection of any two altitudes and a median of the triangle.

Point B, because it lies outside the triangle.

Answer 1

http://en.wikipedia.org/wiki/Centroid#Of_triangle_and_tetrahedron

Answer 2

the first one