Points of Concurrency Triangles

Which of these is called the center of gravity.

• orthocenter

• incenter

• circumcenter

• centroid

If AC=42, find DF

• 21

• 84

• 14

• 28

Find the measures of segments ZG and ZL.

• mZG=28 and mZL=112

• mZG=56 and mZL=84

• mZG=56 and mZL=112

• mZG=28 and mZL=84

If Z is the centroid, what type of segments are drawn?

• angle bisectors

• perpendicular bisectors

• altitudes

• medians

Given TO=7a+5 and OR=8a, find the value of "a" and the length of TR

• a=5, TR=40

• a=4, TR=70

• a=5, TR=80

• a=4, TR=81

If S is the incenter, what type of segments are drawn?

• medians

• angle bisectors

• perpendicular bisectors

• altitudes

Name the point of concurrency shown.

• circumcenter

• incenter

• centroid

• orthocenter

If Z is the centroid, what type of segments are drawn?

• angle bisectors

• perpendicular bisectors

• altitudes

• medians

The three medians of a triangle intersect at the_______________.

• circumcenter

• incenter

• centroid

• orthocenter

The three perpendicular bisectors of a triangle intersect at the_______________.

• circumcenter

• incenter

• centroid

• orthocenter