Question Analysis
The main focus is to identify the altitude among the given line - segments in the triangle by applying the definition of an altitude and analyzing the visual cues.
Key Concept Explanation
An altitude of a triangle is a line segment drawn from a vertex of the triangle perpendicular to the opposite side (or the line containing the opposite side).
Step - by - Step Solution
1. Analyze HJ:
HJ has a right - angle mark, indicating it is perpendicular to the side it intersects. It is drawn from vertex H, fulfilling the definition of an altitude.
2. Analyze EG:
EG is an angle bisector as indicated by the arc marks. It is not an altitude as it is not perpendicular to an opposite side from E.
3. Analyze FI:
FI is a median as I is the mid - point of EH. It is not an altitude as it is not perpendicular to the opposite side from F.
4. Analyze GI:
GI is a perpendicular bisector as it is perpendicular to EH and I is t...