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Tool: Centroid of a Triangle - Math Open Reference
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Go to: http://www.mathopenref.com/trianglecentroid.html (opens a new window)
Description:

A web page and interactive applet demonstrating the concept of the centroid of a triangle.

The applet shows a triangle where the user can drag the vertices around. The centroid and the median lines that generate it are continuously moved as the user drags the vertices. By experimentation the user can observe that the centroid always remains inside the triangle.

The page text explains the definition of the centroid and how to find it. It also shows that the centroid is the center of gravity of the triangle.

Applet can be enlarged to full screen size for use with a classroom projector. After use in the classroom, student can access it again from any web browser at home or in the library with no login required.

This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.

Technology Type: Java Applet 
Author: John Page
Language: English 
Cost: Does not require payment for use

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Courses: Geometry Triangles