Geometry

Question 1

Perpendicular bisector

Answer 1

Bisects a side of a triangle
Perpendicular to that side
Circumcenter
Equidistant from vertices

Question 2

Angle bisector

Answer 2

Bisects and angle of a triangle
Incenter
Equidistant from sides

Question 3

Medians

Answer 3

Connects a vertex to the opposite side
Centroid
Center of gravity

Question 4

Altitudes

Answer 4

From a vertex
Perpendicular to the opposite side
Orthocenter