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Triangle Centers
Review of Triangle Centers and Bisectors for Jarrod's 11 Grade Geometry
17
Mathematics
11th Grade
11/24/2014

Additional Mathematics Flashcards

 


 

Cards

Term

[image]

The Centroid is the intersection of what three lines?

Definition
Medians
Term
A median is a line that...
Definition
...spans from a vertex angle to the midpoint of the opposite side.
Term

[image]

The Circumcenter is the intersection of what three lines?

Definition
Perpendicular Bisectors.
Term
A perpendicular bisector is a line that...
Definition
...bisects a side of a triangle at a perpendicular angle.  It does not necessarily touch a vertex of the triangle.
Term

[image]

The incenter is the intersection of what three lines?

Definition
Angle Bisectors.
Term
An angle bisector is a line that...
Definition
...bisects a vertex angle of a triangle.
Term

[image]

The Orthocenter is the intersection of what three lines?

Definition
Altitudes.
Term
An altitude is a line that...
Definition
...spans from a vertex to the opposite side at a perpendicular angle.
Term

The slopes of perpendicular lines are what?

 

Definition
Opposite Inverse.
Term
The orthocenter of a right triangle is always located at...
Definition
...the point of the right angle.
Term
The circumcenter is located at a point...
Definition
...equidistant from all vertices.
Term

The Midpoint Formula is...

 

Definition

x2+x1 + y2+y

2          2
Term
The Slope Formula is...
Definition

y2-y1

x2-x1
Term
The Slope-Intercept Formula for a line is...
Definition
y = mx + b
Term
The Point Slope Formula for a line is...
Definition
y1 – y2 = m(x1 – x2)
Term
The centroid is located at a point that...
Definition
...is 2/3 along each median.
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