Math Words To Know (Centroids)

MCHS. Geometry.

A median

Line segment joining vertex to midpoint of the opposite side. Bisects that side

An Altitude

Line segment through a vertex and perpendicular to a line containing the base; forming right angles

Angle Bisector

Segment, line, or ray that divides an angle into two congruent angles

Perpendicular Bisector

A ray, line, or segment that BISECTS a segment and forms Right Angles

Orthocenter

Point where the three altitudes of a triangle meet

Circumcenter

Point where the three perpendicular bisectors of a triangle meet

Incenter

Point where the three angle bisectors of a triangle meet

Centroid

Point where the three medians of a triangle meet

The Centroid and Incenter are always ______

Inside the triangle

Which can lie on the inside, outside, or on the triangle?

The Orthocenter and Circumcenter

If the triangle is acute…

Its inside

Obtuse triangle =

Outside

Right triangle =

On

The centroid divides each median in a ratio of

2:1

Midpoint

Point that divides a segment into two congruent segments