Altitudes and Medians

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.

Tags

CCSS.HSG.CO.C.10

Front

How is the length of a median calculated in a triangle?

Back

The length of a median can be calculated using the formula: Median = 1/2 * sqrt(2a^2 + 2b^2 - c^2), where a and b are the lengths of the sides adjacent to the median, and c is the length of the side opposite the median.

Tags

CCSS.HSG.CO.C.10

Front

What is the relationship between the centroid and the segments it creates?

Back

The centroid divides each median into two segments, with the segment connecting the centroid to the vertex being twice as long as the segment connecting the centroid to the midpoint of the opposite side.

Tags

CCSS.HSG.CO.C.10

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

Where do the altitudes of a triangle intersect?

Back

The altitudes of a triangle intersect at a point called the orthocenter.

Tags

CCSS.HSG.CO.C.10

Front

What is the orthocenter of a triangle?

Back

The orthocenter is the point where the three altitudes of a triangle meet.

Tags

CCSS.HSG.C.A.3

Front

What is the difference between a median and an altitude?

Back

A median connects a vertex to the midpoint of the opposite side, while an altitude is a perpendicular line from a vertex to the opposite side.

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, and it is the center of the circumcircle.

Tags

CCSS.HSG.C.A.3

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 incircle.

Tags

CCSS.HSG.C.A.3

Front

How do you find the length of GC if GF = 4 and G is the centroid?

Back

Since G divides the median in a 2:1 ratio, GC = 2 * GF = 2 * 4 = 8.

Tags

CCSS.HSG.CO.C.10