Circumcenter
Incenter
Centroid
Orthocenter
Mixed
100

This point is where the perpendicular bisectors of a triangle meet.

What is the circumcenter?

100

The incenter is the intersection of these lines.

What are angle bisectors?

100

The centroid is the intersection of these segments.

What are medians?

100

The orthocenter is where these lines intersect.

What are altitudes?

100

This center uses perpendicular bisectors and relates to circles around a triangle.

What is the circumcenter?

200

The circumcenter is equidistant from these parts of the triangle.

What are the vertices?

200

The incenter is always located in this region of a triangle.

What is inside the triangle?

200

A median connects a vertex to this part of the triangle.

What is the midpoint of the opposite side?

200

An altitude is a segment drawn from a vertex and perpendicular to this.

What is the opposite side?

200

This center is always inside and uses angle bisectors.

What is the incenter?

300

This type of triangle has its circumcenter outside the triangle.

What is an obtuse triangle?

300

The incenter is equidistant from these parts of the triangle.

What are the sides?

300

The centroid divides each median in this ratio.

What is 2:1?

300

 The orthocenter lies outside the triangle in this type of triangle. 

What is an obtuse triangle?

300

This center divides medians in a 2:1 ratio.

What is the centroid?

400

The circle formed using the circumcenter is called this.

What is the circumcircle?

400

The circle formed from the incenter is called this.

What is the incircle?

400

The centroid is also known as this “balance point.”

What is the center of mass?

400

In a right triangle, the orthocenter is located here.

What is the vertex of the right angle?

400

This center is formed by altitudes.

What is the orthocenter?

500

In a right triangle, the circumcenter is located here.

What is the midpoint of the hypotenuse?

500

This is the radius of the incircle.

What is the perpendicular distance from the incenter to a side?

500

The longer segment of the median is located between these two points.

What are the vertex and the centroid?

500

In an acute triangle, the orthocenter is located here.

What is inside the triangle?

500

Name all four triangle centers.

What are circumcenter, incenter, centroid, and orthocenter?

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