Question

What is the difference between medians, perpendicular bisectors, and altitudes?

Answer 1

Median:-
Segment joining a vertex to the mid-point of opposite side is called a median.

Altitude:-
Perpendicular from a vertex to opposite side is called altitude.

Perpendicular Bisector:-
A Line which passes through the mid-point of a segment and is perpendicular on the segment is called the perpendicular bisector of the segment.

From the definitions you can see the differences.