Question

a centroid is the intersection of three
altitudes in a triangle.
perpendicular bisectors in a triangle.
angle bisectors in a triangle.
medians in a triangle.

Explanation:

The centroid of a triangle is defined as the point of intersection of its three medians. A median is a line - segment that joins a vertex of a triangle to the mid - point of the opposite side.

Answer:

D. medians in a triangle