Question

centroid circumcenter orthocenter incente

Explanation:

• The centroid is the intersection of the medians of a triangle.
• The circumcenter is the intersection of the perpendicular bisectors of a triangle.
• The orthocenter is the intersection of the altitudes of a triangle. In the given figure, we can see that \(D\) is the intersection of the altitudes (as \(AE\perp\) side (assuming \(AE\) is an altitude - since there is a right - angle symbol at \(E\) and \(BF\perp\) side (right - angle symbol at \(F\))).
• The incenter is the intersection of the angle bisectors of a triangle.

Answer:

orthocenter