Answer:
altitude
Step-by-step explanation:
We can also call it the height. "Vertex" is one of the three corners of a triangle. (the plural of vertex is vertices. A triangle has three vertices)
Perpendicular means that the segment makes a right angle with the side it is drawn to.
It's not median or perpendicular bisector, bc bisector means the side is cut in half, that happens sometimes but not always.
