Question

an orthocenter is the intersection of three
○ angle bisectors in a triangle.
○ altitudes in a triangle.
○ medians in a triangle.
○ perpendicular bisectors in a triangle.

Explanation:

• Recall the definitions:
• Angle bisectors intersect at the incenter.
• Altitudes (perpendicular segments from vertices to opposite sides) intersect at the orthocenter.
• Medians (segments from vertices to midpoints of opposite sides) intersect at the centroid.
• Perpendicular bisectors intersect at the circumcenter.
• So the orthocenter is the intersection of three altitudes in a triangle.

Answer:

B. altitudes in a triangle.