Chapter 6: Points of Concurrency Review

Front

What is the centroid of a triangle?

Back

The centroid is the point where the three medians of a triangle intersect. It is also the center of mass of the triangle.

Front

If D is the centroid of triangle ABC and DC is 15 cm, what is EC?

Back

EC is 22.5 cm.

Front

What is a median in a triangle?

Back

A median is a line segment joining a vertex of the triangle to the midpoint of the opposite side.

Front

What is the point of concurrency of the medians called?

Back

The point of concurrency of the medians is called the centroid.

Front

What is the circumcenter of a triangle?

Back

The circumcenter is the point where the perpendicular bisectors of the sides of a triangle intersect.

Front

What is the incenter of a triangle?

Back

The incenter is the point where the angle bisectors of a triangle intersect, and it is the center of the triangle's incircle.

Front

What is an altitude in a triangle?

Back

An altitude is a perpendicular segment from a vertex to the line containing the opposite side.

Front

If a line segment is a perpendicular bisector, what does it do?

Back

A perpendicular bisector divides a segment into two equal parts at a right angle.

Front

Back

Front

What is the orthocenter of a triangle?

Back

The orthocenter is the point where the altitudes of a triangle intersect.