In geometry, what is a median in a triangle?

A median in a triangle is defined as a line segment that extends from one of the triangle's vertices to the midpoint of the side opposite that vertex. This means that it connects the vertex to a point that divides the opposite side into two equal lengths, ensuring that each half of the side is congruent.

This property is crucial for various geometric proofs and properties, such as finding the centroid of the triangle, which is the point where all three medians intersect and is also the center of mass of the triangle. Recognizing the median's definition helps clarify the relationships within the triangle and is fundamental to understanding more complex geometric concepts.